K.P.
I keep a box of stickers and crayons that he can only play with when I need to get something done. He LOVES stickers. We use the little note pads that you get in the mail when you make a donation. The dollar store had tons of cheap stickers. He is 17 months old and just finished "making" Halloween cards. Very cute-
You might also want to consider hiring someone to watch him for an hour or two each day in your home so you can return calls without interruptions.