I've given friends toys like Zini Ran and Leaf's Spirit and some other luxury toys.
I prefer toys that have strong deep rumbley vibrations and if I buy a toy that isn't what I am looking for, they just sit in a box and collect dust. If I can clean them, make sure that they are really really clean, I see no reason why I couldn't give them away or trade them.
This being said, if I had jelly-esque toys or poor safety rated toys, I'd never give those away. Those? I'd gift to the landfill.