testicles are practically nonexistent

Please pardon me if this subject has been covered before. I’ll get straight to the point. My testicles are practically nonexistent. Still, every cock cage or chastity device seems to need a cock ring and some ball presence to stay put. Because my balls sit so high against my body, they can’t really hold up any kind of cock ring, which is why I’ve never managed to wear one. The concept of wearing a chastity device thrills me greatly, and I have tried several models. However, when the unit slips off (which it always does) and clatters onto the floor, it somewhat ruins the moment. Is there any apparatus available that stays in place without depending on your balls? I suspect not, meaning my situation is rather fixed, but I thought to ask here after checking online everywhere. Every device I’ve spotted depends on a cock ring combined with ball support.