Grumpy Old Geeks Products Coin card Product Coin card 5 mentions in 2 episodes Coin is a payment card that a friend of the show reports using at most places he tried. Mentions 121: We Don't Need Another Hero Jul 31, 2015 49:15 he used his coin card ... to pay the tab 49:32 Coin works in 95% of the places I've tried it. 119: The First Rule of Glee Club Jul 17, 2015 42:22 the coin card when it was first revealed back in 2013 as a Kickstarter project 43:20 you can basically input all of your credit cards and carry the one card around 44:26 all he brought was his coin card and it didn't work