I am sure you have gotten a wealth of information...but I thought I would post too!
Mojo is very picky about toys....he won't touch or play or even look at anything that is plastic, vinyl or latex.
He won't play w/ any sort of ball (tennis ball, squeeky ball, etc)
He won't play w/ any toys that are big - he will only play w/ toys that are tiny where he can easily carry them or a bigger toy that has smaller parts where he can bite on to.
AND his toys have to make a noise...talking or sqeaker...no rattle, etc.
He is very picky about treats and food too....So, I think that some of our little ones are just naturally "picky"...they are all unique and different...that makes them special.
AND Mojo loves to cuddle and would rather lay in my lap all day if I let him than play w/ a toy.....and before we got him, his breeder babied him and kept him w/ her a lot because his sister sold and he was the only one she had. So, he came prespoiled.
LilyGrace, on the other hand...will pretty much play with anything...she doesn't play w/ the plastic, latex, vinyl...but will play w/ soft balls (not tennis balls), and not ropes. She loves bigger toys too. AND they don't have to make a noise for her to like them. BUT we got her when she was 2 1/2 and I think she was lonely...no one to play w/ busy "parent's who just had a new baby", etc.