I think I've finally lost one. I've had the Desire Pebble and the Mantric G-spot toy on the ropes for a while, but the Mantric has finally given up the ghost. 🙂 The Desire one charges and works, but still won't hold its charge overnight, and the Mantric one now charges but won't switch on. On the upside, now it's finally dead I can experiment with it. 🙂 I think I'm going to smear the Lovehoney silicone lube over it and leave it to see if it degrades, and after how much exposure. 👍