So my wife has a weird habit of taking pictures of manhole covers when we travel… We haven’t traveled very much since Glowforge spun up, but we’d made a promise to my nephew to take him to the non-english-speaking country of his choice when he graduated high school. So in June, we dashed over to Japan.
We’d never been there, and my wife was delighted by their zeal for manhole cover design. Seriously, you should google “Japanese manhole covers” - they are amazing.
When we got back, I decided to turn some of her photos into coasters. Before and after pictures below. The wood is simple birch MDF plywood, and the white rings are acrylic (I sanded them to give a classier matte look and rounded edges).
Here’s a closeup of one: