Apartment Therapy for the Kitchen has a cute breakfast (or not) idea plus some links to other cute ideas.
If you like hard boiled eggs, A Muffin Story has a fun idea to really shock the egg eater.
Over at Cucumbersome you can find a truly faux fishy idea.
The Museum of Hoaxes has a list of the top 100 April Fool's Day tricks of all time.
Make em' think they're getting to eat dessert first over at Family Fun.
And thank good ole' Martha Stewart for a list of classic tricks to play on your friends & family.
Have fun planning a good trick one someone- I know I will!!