What about a ball gag or a pair of socks? Most dildos & such have that wierd smell, there's a couple of threads knocking about discussing this, if it smells crap it ain't gonna taste like much is it. I would do some reasearch. Never noticed any smell from any of our fun factory toys BTW
Just a thought, why not invest n a nice dildo pillow (see March caption comp) or EazyRider, she can hump that like a whore whilst you 'ahem' silence her with your own personal dildo! Not every time but a change is good as a rest!
Would tend to go with the ball gag as suggested above, miss out the glass dildos, expensive on fillings, and go for a softer dildo that she can get her teeth into!! but take care just in case she gets into the habit of biting!!
My experience of smell is that silicone and vinyl both are fairly smell and taste free. Vinyl has the very slightest and not unpleasant smell, extremely subtle and quite tolerable. Silicone has an even slighter smell, barely even there.
My experience is that any dildo made from "jelly" or rubber or similar will smell the house down and should probably be avoided.
I'd say silicone, but that's also not something I'd want to bite into - I have a lovely silicone dildo from Sh! that I use for teaching myself to deep throat. It feels like biting down onto it could easily become biting into it though, I wouldn't want to try!