Pineapple and mango worked for me. And some Colace to help it pass without tearing me a new one. Decaf coffee normally works like a charm for me, but the Zofran was undoing all the coffee's hard work! Pumpkin (real, not just the flavour) works really well, too.
Nowadays, I have the opposite problem. I take an Immodium tablet once every other day...