Goodbye Party ideas?????????????????!

Right, My best friend is going to Afghan next week, so we are going out on the town this sat for a final fairwell. We have decided to have tshirts made up with our names on the back and a slogan on the front. A funny slogan, we can only think of one Which is "Buy my friend a drink before she goes to War"

Which isnt really that good, so any ideas pleaseee?? Thank You :)