This is a nightlight I made for a 4 year old. It has an outside shell that is treelike although I got a lot of octopus comments.The center piece is printed out of glow in the dark material to diffuse the bright blue LED, although I imagine any translucent material would do the trick. The ring on the bottom is super glued on and can be easily modified for whatever electronics you would like to use. I used a flora lilypad for the battery and the switch because it was something I had around from another project.