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Denver Halloween Events News & Blog

Discover the hottest trend in Halloween costume ideas for 2021!  Halloween is a time for unique creative ideas, expressing yourself, and having fun with friends. The question is ‘what are people going to be dressing up as in 2021?  What should you dare to wear?

This is the ultimate guide to Halloween costume ideas.

Technology Halloween Costume Ideas


With technology overtaking all aspects of life, our daily lives have become littered with artificiality. So what’s next for Halloween costumes after bright colors and complex themes dominated in 2019? The answer may lie in the past! We looked at recent costume trends, and they are reverting to simpler things that were popular pre-millennium, Welcome Halloween throwbacks for 2021!

In 2019, the future was bright with neon hues and complex themes. We saw a revival in space-based spacesuits like astronauts from 2081.  Robots were prominent this year, too, with movies like long-time popular ‘I-robot’ inspiring a multitude of costumes of robots based on customized household appliances.

Futuristic Costume Ideas – 2021

The 21st century is a mix of futuristic and human avatars, memorable characters like the computer voice in ‘The Matrix’ being popular choices for costumes. We also saw an upturn in the popularity of clever costumes that existed solely online, such as social media influencers and video game characters.  Other trends included a time-traveling back to the past when more straightforward ideas were widespread, with simpler popular costumes years ago becoming more prominent. Some examples include robots based on household items, aliens from movies like ‘ET,’ 80s pop culture references, and adult fancy dress outfits. 

We may be living in a time where hyper-realistic experiences via social media have made reality seem dull by comparison. We believe that timeless Halloween costume ideas for 2021 are precisely what you may want to consider this year! 

2021 Adult Costume Guide


We’ve put together a 2021 Adult Costume Guide to help you create the perfect costume for Coloween. 

If you want your outfit to win this year’s $1,500 Denver costume contest, you need to be creative and think outside the box for the character you are playing this year at the best Denver Halloween Party in Colorado! 

The immersive world of Coloween becomes real life for one night; who will you become?!

What’s hot in 2021′s Halloween costumes ideas…

Pamela Anderson Costume – One of the most iconic Pamela Anderson Halloween Costumes right now is a DIY costume that you can make yourself.  This year, try out a fun Pamela Anderson Costume DIY idea.

Bratz Halloween costume – If you’re looking for an easy Halloween costume idea that will stand out at the party,  consider dressing up as a Bratz character.    There’s always a last-minute option to go as a Bratz doll if you want a quick  Halloween costume idea with minimum effort.

Lolita costume – The Lolita fashion trend is a more significant idea. Ever right now.    If you’re looking for a  Halloween costume idea with a  unique style,   consider going as a Lolita character.

Japanese Geisha Halloween CostumeGeisha is one of the most charming characters in Japanese culture  —a  Halloween costume idea that’s perfect for a Coloween party or any New Year’s Eve Tokyo nightlife celebration.

Marijuana Costume – Trending on Instagram this year, the Marijuana Costume is an excellent choice for anyone who wants to be a Halloween costume that’s slightly controversial and perfect for a  Colorado Halloween party such as Coloween.

Nurse Halloween Costume –  A classic Halloween costume choice, the Sexy Nurse is a great way to say “I’m here for your health” while showing off some skin.  A Sexy Nurse costume is an excellent choice for anyone who wants to be a kinky Halloween costume.

Karen Halloween Costume – Don’t be a Karen Halloween costume is an excellent choice for anyone who wants to be on top of the latest trends, but don’t be a Karen at Coloween 2021.

Sexy vampire Halloween costume – Popularized by the Twilight series, sexy vampires are alive and well in Halloween Costumes Ideas.  The vampire costume is an excellent choice for all the goths out there looking for a Halloween costume idea that’s still cool and fun enough to be worn in public. 

Harley Quinn Halloween costumes – from the world of superheroes are some of the hottest Halloween costume ideas, and Harley Quinn is one of our favorite Halloween Costume Ideas for Halloween 2021!

Cheetah girls Halloween Costume – This year, it’s all about Cheetah Girls Halloween Costumes Halloween.  Unleash your inner animal with a Cheetah Halloween Costume.

Sexy Egyptian Halloween Costume – Halloween Egyptian Halloween Costume Ideas Halloween outfit is an excellent choice for anyone looking for an extra kinky Halloween costume that will turn heads on Coloween.

Cheech and Chong Halloween Costume – Coloween is “Colorado Halloween,” let’s get high with Cheech and Chong!

Top Gun Halloween costume – Halloween costumes that pay respect to the classic 1980’s blockbuster Top Gun are sure to be a Halloween costume idea with staying power for Halloween 2021

Bob Ross Halloween costume – Halloween costumes from the world of art can be some of the best Halloween costume ideas, and a Bob Ross Halloween Costume is one of the most fun Halloween costume ideas for Halloween.

Lesbian couple Halloween costume – Halloween costumes that represent the world of LGBTQ are some of the most fun Halloween costume ideas out there.

Mandalorian Halloween Costume – Halloween costumes from the Star Wars universe are some of Halloween’s hottest Halloween costume ideas.    Consider going as a Mandalorian Halloween Costume in honor of Star Wars: The Rise of Skywalker.

Cop Halloween costume – Halloween costumes that represent the world of law enforcement are some of Halloween’s hottest Halloween costume ideas.  A Cop Halloween Costume is one of Halloween’s hottest Halloween costume ideas.

Trump Halloween costume – Halloween costumes that represent the world of politics are some of Halloween’s hottest Halloween costume ideas.  Donald Trump Halloween Costumes for Halloween 2021

WWE Halloween costumes – Halloween costumes that represent the world of professional wrestling are some of Halloween’s hottest Halloween costume ideas.  A WWE Halloween Costume is one of Halloween’s hottest Halloween costume ideas.

Suicide squad Halloween costumes – Halloween costumes that represent the world of comic book superheroes are Halloween’s hottest Halloween costume ideas.  A Suicide Squad Halloween Costume is one of Halloween’s hottest Halloween costume ideas.

More Runner Ups and other great costume ideas!

  • Velma Halloween costume
  • Mermaid Halloween costume
  • Roblox Halloween costume
  • M&M Halloween costume
  • Air Jordan Halloween costume
  • Goth Halloween costume
  • Lifeguard Halloween costume
  • Mortal Kombat Halloween costume
  • Sexy vampire Halloween costume
  • Cow Halloween costume
  • Avatar Halloween costume
  • Shego Halloween costume
  • Carters Halloween costumes
  • Donald trump Halloween costume
  • Cheetah girls Halloween costume
  • Kill bill Halloween costume
  • Cupid Halloween costume
  • Cheech and Chong Halloween costume
  • Flintstones Halloween costumes
  • Top gun Halloween costume
  • Bob Ross Halloween costume

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