Generally whatever someone is wearing, they probably want to keep it so a random offer w/o even stating what you are offering is just plain rude.

Plat and plat items are not tradeable.

Story tokens are not tradeable.

Hauntlet coins are not tradeable.



Don't forget:
If you throw your idevice just BEFORE the boss dies, then shake it vigorously AS the boss dies, you will definitely get a gold chest!