Is there any other way to upload UGC items?

[MerlinTealess (マーリン)]

maybe you try to follow this topic:

UGC Catalog is Now Live!

Hey developers, We just completed a live test of our User-Generated Content (UGC) catalog. We are now enabling everybody on Roblox to view and buy items from the UGC catalog. The UGC catalog will enable creators to publish and sell their own hats and other accessories to others on Roblox. Initially, only a select few developers will be able to upload their creations to the UGC catalog. This group will give us feedback on the process and help us discover anything that we should change before w…

and if you want to show your UGC item show on here:

Show Off Your UGC Creations

With the recent addition of the UGC catalog, you need a place for all of you to show off your cool UGC creations! Show us your hats, hair, helmets, masks, wings, ears and any other accessory you can make on this thread.