I do one with boiled eggs, spring onions, grated carrot, capsicum or whatever I've got in fridge at the time then I mix a teaspoon or so of curry powder in with some mayo and toss it through.

My mum makes one with seafood mix (that white and red stuff), onion, capsicum, celery and puts Thousand Island Dressing over it. I prefer it witout the seafood crap though.