I need help on what to wear to a costume party?

so my friend thought i would be a briliant idea to have a candy birthday theme. whoopy ( not ) the only problum is all i have come up with for a costume is ither extreamly sluty or lame . so im a high schooler the point is to look good without auctioning off your body on ebay . and please refrain from lolly pop = lick me , or umm sugar daddy =..... really ? do i have to expliane, and mr.goodbar = bar ? good ? what ? please help im shooting down every idea that anyone could ever have , hopfully you have beter ones ?