Create your own custom-colored Thinking Putty with a Mixed by Me Kit. Each kit includes five tins of clear putty, three color concentrates, three special effects, and an instructional mat—everything you’ll need to make cool Thinking Putty colors that are all your own! When the mixing is done, the fun’s just begun! Play with your new colors by day, and enjoy their awesome green glow by night. You can even use the included colored pencils to decorate your tins to match.