I have a basket full of these I use to keep my kids quiet in church or when I need to get things done at home.
Things they include:
Little race cars (and the farm implement equiv. Ha) Books I pull off the shelf but we don't read often Those Magic Ink books Play Packs from the Dollar Spot Stickers Mini art kits (more for my older DD) Mini paper dolls but they're magnets I found some mini block packs and puzzles in the back of a Family Dollar once.