This is a set of coasters based on the turtle select screen from Teenage Mutant Ninja Turtles II on the NES. Made for laser cutting.
Source image added for reference.
Object made for laser cutting. Designed for material that is 1/8" thick.
I used MDF board and colored the pieces with colored pencil (Prismacolor) and black permanent ink. The coasters were then coated with spray on clear enamel as a protective layer to waterproof it. If you want add a soft fabric to the bottom of each coaster, there is enough height to the box to allow for ~1 mm thick piece of fabric.
If you decide to use ink to color yours and then coat with spray enamel, you have to do a few light layers of enamel before adding a heavier application--otherwise the spray enamel will dissolve the ink and make it bleed. With MDF the enamel tends to absorb into the wood a little so after about 3 or 4 lightly applied layers, the surface should be sealed of enough to add heavier applications for a glossier finish.
This is kinda optional but before applying the enamel I put a couple layers of workable fixatif on the coasters to help protect the ink and also to seal off the wood surface a bit so the enamel wouldn't absorb in as much (the clear enamel will darken the MDF wood a bit, but the fixatif does not).