I often give my guy a bowl of flour and water and just let him stir to his hearts content. I even have made special batches of dough for him to cut with cookie cutters.
Something insanely simple, get the Snyders pretzels, the little square ones, put a hersheys kiss on each one and put them in the oven on like 300 for just a couple minutes, you only want to soften the kiss. Top & smoosh with an M&M. No mess, impossible to mess up, perfect for little hands. And imagine how much time he will spend unwrapping the kisses.
