Swissmar Silicone Grip Coasters are unique drink coasters that attach to glasses, cups, stemware, cans, and almost any drink container you can think of! Grip coasters are great for mingling at a party, they go where ever your drink goes! These grip coasters also work drink markers, so you’ll never get your drink mixed up with anyone else’s! And even better, they act as a non-slip base and protects table surfaces.
Find these on Amazon.com – $15.00
Lol Looks like magpul symbol