Eat My Dirt
Mix up your favorite chocolate pudding recipe. Place the pudding into a clean plant pot (if it has a hole in the bottom cover the pot with saran wrap.) Crumble chocolate cookies such as oreo cookies all over the top of the pudding. (For a little more fun put the pudding and crumbled cookies into the pot in layers, as long as you finish with the cookie crumbs on top.) Push a few gummy worms into the "dirt" so it looks like they are crawling out. If you want a plant push a couple of basil leaves into the "dirt" to look like a sprouting plant.
More April Fools' Day:
Eat My DirtEdible Aquarium
Moldy Milk
Sushi?!
Twenty Funny Ideas (and then some)