Brewser never used to like her toys either. She used to be scared of the squeaky toys, so I would pretend to be scared of it too and then "pounce" on it and pretend I was attacking it
I would say things like "oh no brewser, what's that?" And then "get it" and she thought she had to help me attack it. Now it's the only kind of toy she plays with. I also take her shopping with me and let her pick out which toys she wants.