Since Easter and April Fool's Day landed on the same day this year, pulling a prank on the actual day would be too obvious. However, pulling the prank the following weekend would be a "joyful" scene your family would never see coming. Here are a list of suggested pranks (*Disclaimer: I do not actually recommend you try any of theses unless you have unlimited funds, too much free time, and don't think they would leave any permanent emotional scarring):
1. Set-up all of the Easter decor once again and let your family wake up to think they've gone back in time.
2. You can keep repeating #1 to make everyone think they are trapped in a Groundhog's Day scenario.
3. Fill your house with rabbits. Then make everyone else clean up after them.
4. Have Night of the Lepus playing 24-7 on every TV, then hide all remotes and make the TVs impossible to turn off (*Side note: Look up Night of the Lepus if you have no clue what I'm talking about. It's magical)
5. Glue frilly Easter Bonnets to everyone's head while they sleep
6. Cover the front lawn of every house with plastic Easter Grass and replace the street signs with "Welcome to Fluffville."
7. Hide extra eggs which have not been hard boiled, then don't tell anyone about them. When the stench starts, pretend you smell nothing.
8. Replace the chicken eggs with lizard eggs and wait for them to hatch.
9. Give out only licorice jelly beans.
10. Take away the children's candy and tell them that it must be sacrificed or Spring will never come.
11. Paint everything in pastel colors. Ev-er-y-thing.
It will all be so full of the chocolate, egg, Christian, Pagan, and April Fools spirit. Everyone will be impressed that you cared enough to prank them as a surprise. And isn't that real meaning of whichever holiday we're talking about? No. Seriously. I already forgot.