Mister Monster. Assemble monsters with the elements from the palette. 8 monsters to practise on, produce the funniest or scariest monster, and print them to show to your friends! Mister monster is a great tool for teatching drag n drop! YooGlow. Stick small bulbs in the grid, and produce images. Express yourself in a elementary interface. See the result of your creation actually quickly on the screen. A free expression tool, accessible for all ages.