The red plastic party cup.

This is a piece of paraphernalia that says to the beholder, "You are at or are witnessing a drunken party." When someone sees a picture in which a person his holding a red plstic party cup, they will immediately assume the cup holder is drunk. That said, if you are holding a red party cup, you should be at a drunken party. If you are holding a drunken party, particularly one at a Frat house, you should be providing red plastic party cups. Blue is unacceptable. Yellow is laughable. That said, think hard, host or hostess. Is this a baby shower? A sophisticated book club meeting? A memorial service? If so, DO NOT PROVIDE RED PLASTIC PARTY CUPS! Anyone planning on being drunk at such an event will either bring their own party cup (possibly from the drunken party they were just attending) or simply drink at home before arriving. Or both.