Amen to that, suction cup dildos without balls is the way to go!
I recommend my well tested favourite on our toys page:
It’s so lovely, the curve works great in both directions, it sticks like a motherfucker to anything smooth and is the perfect length to wear in you (with a bit of a stretch, hence, perfect).
The site we recommend all the time is Lovehoney – the reviews on each toy are so helpful and they offer a whole year’s free returns for any reason, so if you don’t like a toy, just get your money back or try a different one, it’s great.
For more ideas: