Yesterday I read a story about presenting a basket with non eatable apples and with one real apple to trick a girlfriend. I like this idea and the continuation of this thought came to my mind.
If I were a manufacturer I would produce such non eatable fruits and vegetable look like real. But they wouldn't be just decoration, but have some sound built in.

Now imagine - you bring a basket with fruits and give it to your beloved, friend, to your relative, whom you want to play a trick on. He or she takes fruits and starts to eat. The idea is that real fruits are mixed with some fabricated. So once he/she chooses the needed one and bites it …. the fruit starts to shout or cry that it's very painful, or just some sound like -OH! AH! Or help me! They are going to eat me alive! Don't eat me! And so on :)

I think it's a good and funny idea. It is good to use it for the 1 April day.