This is a surprisingly easy DIY project, that you might be able to make for free if you have some epoxy left over from an old project. I took some old cedar fence panels, burned them with propane torch, then covered with epoxy. What I got was a pretty cool 3D wood and epoxy coaster unlike any I had seen before. Hope you like it, let me know if you have any questions!
Blog post on this build: https://www.blacktailstudio.com/blog/epoxy-burnt-wood
Items/products used:
Liquid glass (deep pour) epoxy: https://amzn.to/39xYCfF
Better boat (table top) epoxy $20: https://amzn.to/3aCYU6p
Better boat (table top) 1 gallon kit: https://amzn.to/3bH4uVw
Propane torch (best one): https://amzn.to/3aEC7XO
Propane torch (cheaper one): https://amzn.to/2w6uSZT
Tyvek tape: https://amzn.to/2wT7e3e
Disposable brush: https://amzn.to/2wY9wOy
Laguna bandsaw: https://amzn.to/2w2Y3ge
Shellac: https://amzn.to/3aECmCc
Website: https://blacktailstudio.com/
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Facebook: https://facebook.com/blacktailstudio