Dinner Party Ideas

Hey everyone, I had mentioned that for my final project I wanted to host a dinner party or appetizer get together or whatnot. Since our class isn't huge we can totally have it at my place, I live right above the crystal city metro stop so it's easy to get to from school. I was thinking of having it on a Sunday perhaps? I know everyone's schedules during the week are very different and thought Sunday might work best. Any other ideas? Also please post suggestions about foods you like, or things you are allergic to or things you don't eat. I know we have vegetarians and vegans in the class so I will do my best to accommodate to everyone!