My favorite suggestion from this link is to buy a cheap small blow up round pool, put the toddler in it, and let the toddler make a mess in whatever……..paint, playdough, dry rice, etc…….then afterward, just put the pull outside to clean it and store it away in the garage. I wish I thought of this 1-2 years ago when my dc were toddlers (they are now 5&3)….would have saved my kitchen many messes.