This was something I made back in highschool that I still have and love. I had found the pattern online and was lucky enough that the teacher actually had the proper coloured glass for it.

It lights up fairly well in a window, though the dark brown bits only really glow if its a very bright light. It's 11 inches long from tail to paw.

I'm a little reluctant to part with it, but I don't even keep it hanging in a window where it can be properly admired (I don't trust suction cups to hold it to the window :I )

Edit: Sold! That was fast!