Only thing I can think of is food games. I hid little bits of food for Kassa. She loved going in and digging up her blanket to find it. A filled kong.
Erns is too grown up for silly games and wont play. I coxed him in, then left the crate open, treating. Built up so he was in there for half an hour and closed the crate. He was fine. It was a slow gradual pprocess, and now he loves to go to his crate by himself.
as you know, jax came to me with a surgery and then had to have another...so his first 3 months with me was mostly crate. i started him when ALL food and good things in the crate. even his treats...he only got treats in the crate. now when he sees me open the treat jar; he runs to his crate. lol