The ears were super easy to modify to fit the dolls. I imagine you could make them to fit any size dolls head, but seeing how my little love bug only likes the Disney Animator dolls... that is all I play with too. *grins* I used pre-made super-cute bunny ears that I bought at the dollar store for the dolls bunny ears. The plastic headband on the bunny ears were way to big for the dolls heads so I had to make them smaller. Here you can see the newly sized purple bunny ears compared to the original size of the bunny ears shown in the pink headband below.