Are there any good April Fools jokes today? For example, a few years ago Google announced a sewage based ISP (i.e. flush some fiber optic cable down the toilet and they would fish it out and connect it).
For an IRL example... I explained April Fools Day to my 4 year old kid this morning for the first time. His first instinct was to wrap a piece of Lego in foil and have me write CHOC on it, then leave it outside the bedroom door for my wife (who was having a lie in). I think he gets it!