These are some really sweet Space Invaders coasters. Each one is made up of 200 tiny squares of maple and walnut glued together and sanded and finished. That’s a LOT of effort by hand just to make one coaster. They’ve got all the different types of pixelated Space Invaders represented, ready to protect your coffee table from an alien drink condensation ring attack. They come in a set of six.
$50 at Etsy via Geeky-Gadgets
HappyDavid Leather Drink Coasters Cup Mat Set of 6 with Coaster Holder for Fine Wine Beer or Any Beverage Use on Bars or Fine Furniture in Your Kitchen (black round)
Round Slate Coasters by EMEMO® - Set of 4 Unique, Handmade Coasters For Drinks, Beverages, Wine Glasses - Elegant Look & Unmatched Furniture Protection - Made Of Genuine Black Slate