Searching for Thomas shoes on the Internet
If you have no desire to go hunting around stores all over town, the internet is a great place to get started in your shoe shopping (and not just for Thomas shoes, but all sorts of cartoon character-themed shoes).Amazon is probably the first place to look for Thomas the Train shoes. They have a very large variety of different looks and styles. You can find tennis shoes, sneakers, slip-ons, croc-type shoes, flip-flops, rain boots, and many other kids of footwear.
eBay is also stocked full of Thomas the Train shoes. Since kids grow out of their clothing very quickly, you can usually find good deals on shoes that aren't all that worn.
There are lots of other places to look online as well. The biggest issue with shopping online is finding a pair of shoes in the right size. You also can't have the child try on the shoes. Make sure you understand the return policy before buying them off of the internet.