I don't really buy "rabbit toys" for my bunny. I give her baby rattles. She LOVES them. She likes the hard plasic kind she can throw. I would go Baby's R Us, or anywhere they sell baby stuff and find the cheapo plasic rattles, baby keys, untreated wood blocks, that sort of thing. I also give my bunny my empty plastic spools when I use up my thread. Pringles lids, strips of cloth tied to her cage (from old torn, unfixable pants), soda boxes, a stuffed animal, and perhaps the best free toy of them all, toilet paper tubes. I try not to spend money because she tends to like the cheap or free stuff. I even have some baby keys left over from my garage sale finds this summer. I am going to wrap them in some brown paperbags and give them to her on Xmas, 2 toys in 1!
Watch your bunny play, what does she like to do? Toss things around? Chew on things? Dig and scootch? Groom? Once you see what she likes to do, then you can choose the toy that best fits that type of play.
Good luck in your search,
~Star~