If you have an old clock that’s worse for wear give it a quick makeover with marble selfadhesive paper.
Paste the paper onto a square piece of cardboard. Trace and cut out a circle. Make a small hole in the middle of the circle. Using glue, paste the clock electronics to the back of the cardboard circle, with the pin sticking out of the hole you made in the middle.
Attach the clock’s hands, and voilà – a “new” clock.