FOUND A POSSIBLE SOLUTION:
There I was in the Jumbo pharmacy with Dh...browsing around whilst awaiting the cashier. And, lo and behold (no pun intended), I saw a pack of condoms with a ring vibrator as a BONUS feature. Of course, I immediately remembered this thread (to think of all the brain space I use on various stuff!)...
Here's the info:
Brand: DUREX, type: PLAY; specialty VIBRATION (there is a little picture of a ring with a nubby vibrator thingy on it!)
Product reviews anyone? I should have purchased one as a tester
