Dale..

Dale: Your party sound great! Your collection of foods should great. And, I am a slinky fan from way back.

Have you thought about fried spiral potato skins? Or fried spring onions?

And, on April 1st it is almost mandatory you have spring cake.... The one I have done involves frosting a 9" round, 4-5" high piece of foam rubber. The frosting is simple, thawed cool-whip (or generic brand). As an April Fools joke this is meant to be "cut" by your April Fools "victim" but....it just springs back at them.

You could cut small pieces of foam rubber (electric knives work well) and frost them or dip them in chocolate and serve them in cup-cake type liners. Heck, add a cherry, strawberry, etc. on top.

Are you looking for any more ideas?