The only toys I've agreed to use on myself were presented in sealed boxes, and I do explain I don't get a great deal of pleasure from any toy.
A punter once pulled out a toy from a drawer, the property was very obviously shared with a partner or at least photos of a woman and children all over the house. Instant knee jerk reaction 'No'. Another grabbed a magic wand he had by the bed, this was because he was having trouble staying erect and he explained watching me use it on myself would turn him on. Aside from the hygiene issues I have had a magic wand used on me once, I got zero pleasure from it, only thing I did experience was the sensation of my pelvic bones vibrating which wasn't erotic at all. So once again 'No'.