How to Make T-Shirts in ROBLOX T-Shirts are the easiest clothing to make in ROBLOX. Create an image that’s ideally 512x512 pixels and then upload it to ROBLOX via the Asset Manager in ROBLOX Studio.

Sure enough, the team did add an “Accessory Adjustment Tool” last year for players to toy around with. The catch was that the tool was only about face and head accessories and nothing else.