I love April Fools Day! Some of my favorite tricks to pull on my kids include painting their fingernails and toes while they are sleeping (yes, the boys and my husband too!). I have also drawn curly ended mustaches on their faces with an eyeliner while they are sleeping.
omg, the mustache idea is hysterical! I may just have to try that. not sure I could get away with it, though, without them waking up!