"Proof of Work" Sweat-Activated T-Shirt Size:Large children build a healthy self-image

children build a healthy self-image and boost their self-esteem

and endless fun

Players ages 6 and up take on the role of space explorers working to collect 21 "bitcoin" game tokens by rolling dice and navigating their rocket pawn around the game board

If they see strength in themselves early on

Along the way

"Proof of Work" Sweat-Activated T-Shirt Size:Large children build a healthy self-imageFirst 2023 design addition to our Proof of Work Apparel (TM) line of products for Bitcoiners. Up your game, print your apparel with sweat activated ink. Graphics printed using sweat activated ink are completely invisible until activated with moisture. As the shirt becomes wet, the design begins to appear. The more the person sweats, the clearer these graphics become. Once the shirt begins to dry the images disappear, ready to start the cycle again.