This time it's personal. Create your own custom Thinking Putty colors with this brand-new kit from Crazy Aaron's Puttyworld. With five tins of clear putty, three concentrated color putties, three special effect putties, and an instructional mat, it includes everything you'll need to make cool Thinking Putty colors that are all your own! Mix up your favorites then use the included colored pencils to decorate the tins to match. When the mixing is done, the fun's just begun! Your Thinking Putty will never dry out so you can play with your new toy forever.