Item customization for VIP should be a standard, I loved how you could choose only 1hat, and 1body. However I tend to lean more towards items than hats. Maybe, when releasing an item, let players choose the color(s)!
(E.X. guitar melee is out for VIP! Then you'd get a message, you could click which color of the guitar melee you'd like.)
Similar to the Pogo sticks yes, you could purchase for an extra fee, but no-extra fee, because It would be an item for VIP(s) only, just choosing the color of the item.