Blue Moon

• Make yourself a Blue Moon (a beer brand) by wearing all blue and either taping a moon created out of poster board to your front, or attaching a fake rear end (available at most costume shops and party supply stores) to your backside to make it look like you're "mooning" people as you walk by.
  
  

Ghost Family

• Be a ghost family by taking a white sheet and cutting out eye holes to create a traditional ghost outfit. Purchase a few helium balloons, tie them to your arms, and put sheets over them as well to create your ghost children who will follow you wherever you go.
  
  

Kissing Booth

• Turn yourself into a kissing booth by taking a medium-sized box that will fit over your head, cutting out a window and decorating it to look like a kissing booth. Put it over your head and make a few friends, or a few dollars, while you're at your party.
  
  

Bed Bug

• Create a bed bug costume by wearing pajamas and antenna so you are a bug who is dressed for bed.
  
  

Royal Pain

• Be a royal pain by wearing a crown and a graduation gown or bathrobe. Cover yourself and your clothing with bandages and fake blood to represent the pain.