solar wax melter using a black plastic "tub box"

In the plumbing aisle of Home Depot, I discovered the central component to my solar wax melter--a black plastic "tub box"--inexpensive ($3) and includes a lip for the clear lid. Besides the great price, the black color runs all the way through the material--in my mind, an advantage over wax melter designs that require black paint.

Found the clear lid at the home depot too, a sheet of 18 x 24 x 0.93 clear Lexan ($16) which I cut using a jig saw with a metal blade. The 1 inch foam insulation that surrounds the box is a "found item"($0)--something that came to me as packing material for furniture.