Bible Belt Balabusta provides inspiration to actively engage kids in Passover preparations:
"Bedikat Chametz, or Search for Leaven is a quick, hands-on, kid-friendly and extremely memorable activity right before Passover starts. Basically, we hide bits of bread/leaven/chametz, let the kids find them at nightfall, and then destroy the bits the next day (the morning before the first seder). In short: hide + seek + darkness + flames = awesome."
Access instructions HERE