IDSO-Miss Spider's Sunny Patch Friends sandals

We bought my 17 month old dd some of these sandals at*gasp* Wal-Mart, and she absolutely loves them. The problem is that they are too small for her but she doesn't care and wants to wear them anyway. She has a sz 4, I think she needs a 5 or 6. They have soles like tennis shoes and Miss Spider's face on top. I would like to try to switch them out for some different ones that fit, but I can't find them anywear, not even on ebay. If someone has a pair they don't need or even if you shop at Walmart and happen to see them, I will pay full price plus shipping. Thanks so much.