Star Kids Snack and Play Travel Tray: Baby ~ Nylon. Car seat tray provides flat, safe area to eat and play. Fits most booster seats; buckles around children, car seats and strollers. soft foam reinforcement folds on impact.
Easy kiddie kitchen sinks: find a table, cut two holes, insert plastic tubs - can't find this on the link but the picture pretty much tells you what to do! Great idea for outdoor play space In the summer