Originally Posted by Carla P
I'll try to describe a homemade one I saw. It was a simple wooden frame, about 4 inches tall, 12 inches wide, maybe 12 inches long with a hole in one of the boards to insert a "light bulb holder" (because I have no idea what they are called) like the kind found on lamps. She had a piece of thick plexi-glass laying on it for the clear surface.
Clear as mud?
this the way my DH made mine...don't go too small, make sure at least 12x12 Mine is 8x12 and hard to find the middle of the block....he used a floresant tube bulb...works good