Using wireless charging and supercapacitors, he’s developing an LED coaster that can be hermetically sealed in clear resin.

Phillips’ coasters are coated with a high-gloss, resin epoxy finish that makes them appear glassy. "Other coaster makers tend to use Mod Podge or a clear coat acrylic spray.

Buy LIFVER Drink Coasters with Holder $13.49 2. Handmade Round Slate Stone Coaster These natural slate coasters offer a sturdy base for any drink and a rustic style that’ll look great in any room.

The Upcycled Record Coasters are made from old records cut to coaster size and laminated, so condensation can't sneak through the hole in the middle and damage your table.