get a couple of store bought pizza bases and using a round cutter (or different shapes if you want to get tricky) cut out rounds from the bases and make pizzas. You can do cheese and ham or ham cheese & pineapple. You can make them the night before and store in the fridge ready to go in the morning (I'm prepare as much before hand as possible kinda girl). Only thing is with the pineapple make sure its been patted dry before putting it on, or put it on before you put it in the oven (either way I'd still pat them dry nothing worse than soggy pizzas).

Make your own sausage rolls in advance (I think my recipe is floating around here somewhere) then freeze or fridge them to come out just for the party.

Just make sure if you do use skewers that you cut off the ends as they can become nasty weapons in the hands of 2 y.o.'s

Pigs in blankets are good. Cheesy Puffs, Potato Puffs... ummm pikelets with butter and jam. Or even cheese and chive and bacon pikelets with phili

If I think of more will let you know!

*hugs*
Cailin