Sometimes, I used to wear a engraved cock ring before my base ring and cage that said owned by madam, however it was the same diameter as my base ring. So maybe a double thick base ring may be of help to you?
It has seemed to help a lot today. We'll see tonight? There is definitely no way to pull out now! Not that I'm trying.
I use one in conjunction with my PA piercing but not in lieu of a cage. Mostly just to give my balls a feel of being squeezed which the cockring does.