My son's 3D printer arrived, and he’s been printing all kinds of little shapes to sell to his classmates at school. The transactions are done using virtual currency in Roblox, with the unit being T, like 10T. 1T is roughly equivalent to $0.7. The printing materials he bought are either colorful or glow-in-the-dark, which are super eye-catching. Once he learns how to design on his own, I guess in a year or so, he’ll probably become one of the 'richest' players among the kids in the Roblox world.