Can anyone recommend a good shampoo cap for toddler?

My daughter uses to wear a yellow shampoo cap for washing hair(forget which brand) which I bought from Eugene. However, for the last few weeks, she refused to put it on any more, I suspect the cap is too small for her now.

I have tried Eugene and several baby shops, they only have the yellow one and no other choices. Please let me know if you see other available.