Much like most things on Roblox, you will be making this yourself from scratch, so you'll need to design a t-shirt in an image and then upload it to Roblox.

Roblox UGC or User Generated Content is held in quite a high regard, and game developers often issue these UGCs to gamers for free by putting in little or negligible effort.

Roblox is rolling out Creator Hub, a new destination that gives developers more tools and centralizes things like documentation and a developer forum into one place.