Radiation Symbol insert for Toxic Waste Lamp

I liked the Toxic Waste Lamp but the insert would block enough light and it would show through the barrels body as a darker square. So I made this with the plan of printing the trefoil symbol on top of a single layer of transparent filament. It worked out nicely for me so I thought I'd share it here.

The symbol is a bit bigger than the holes in the barrel, so when I slide this into the barrels slot, the print bed side of the part is flush against the barrel walls. The larger symbol also prevents regular light from coming through at certain tight angles.

The first layer should be printed in clear/transparent filament and the remaining layers in green or whatever color you want the symbol to be.