If you and your group are fans of all things winter, dress up as snowflakes. This idea is especially useful when your crew is exceptionally large, since everyone doesn't need to necessarily match. Each person needs an all-white outfit and an adorable snowflake accessory, like a headband. Alternatively, you can wear a jeweled tiara or hair clips. There's a lot of room for personalization here, so don't be afraid to get creative!
 Researchers conducted a survey for the National Retail Federation in the United States and found that 53.3 percent of consumers planned to buy a costume for Halloween 2005, spending $38.11 on average (up $10 from the year before). They were also expected to spend $4.96 billion in 2006, up significantly from just $3.3 billion the previous year. The troubled economy has caused many Americans to cut back on Halloween spending. In 2009, the National Retail Federation anticipated that American households would decrease Halloween spending by as much as 15% to $56.31. In 2013, Americans spent an estimated $6.9 billion to celebrate Halloween, including a predicted $2.6 billion on costumes (with more spent on adult costumes than for children's costumes) and $330 million on pet costumes. In 2017 it was estimated that Americans would spend $9.1 billion on Halloween merchandise with $3.4 billion of that being on spend on Halloween costumes.
In true millennial fashion, you and your squad can dress up as social butterflies. First, you'll need pairs of butterfly wings in a rainbow of colors. If you're crafty, you can easily make a pair of antennae with a headband and two pipe cleaners. Next, print out the logos of your favorite social media platforms like Facebook, Instagram, LinkedIn, and Twitter. Pin or tape it to your clothing and you're good to go. (But not before you post it on the 'gram, of course.)