I haven’t thought of this, you could ask roblox or risk it I guess.
I didn’t know of anything they sold other than nft, I might be wrong but I think they got stopped: Notice: Review of Recent Off-Platform Behavior
Ok, that was just stupidity on my part. I forgot how they worked and thought the device needed to see them to scan them. Go right ahead then!
So far it sounds like the hardest part is making the website and moderation.