 If you want your next project to have a wow factor why not make a glass PCB! You can see how CNLohr makes them in the video above. A glass microscope slide is what the circuit will be made on. He puts some UV activated glue on the slide and sticks some copper leaf on it. A UV eraser is used to cure the glue so that the slide and copper leaf is bonded together. The next step he does is the standard toner transfer method which allows laser printer toner to be fused to the copper. Now he has an etched board that has glass instead of fiberglass as the substrate. After the etching process the glass is a but frosted but by applying a quick coat of polyurethane is used to make it nice and clear. He paints it on but I think a dunk might also work quite well and would also give you a bit of water protection also.