Where to find unusual Little Pet Shop toys?

My seven year old is obsessed with the Little Pet Shop toys. She has many of them and is getting more for Christmas. I already have several of them bought for her. However most of the ones she has are the ones you see all over. She is starting to show more interest in the more unique ones now but I can not seem to find them anywhere. Even like the monkey.We bought her friend one for her birthday about a month ago.She asked me to buy her it then but they were all over the place and I didnt get it that day. Now I feel really bad because she really wants the monkey and I cant seem to find it in any of our local stores. She also wants the butterfly, the chinchilla and many more. Can you help give me ideas on where to find them?