Help!

Since September is finally here, I guess that it is okay to start talking about Halloween costumes.

A couple of weeks ago, I asked Harrison what he wanted to be for Halloween. "A fish," he said.

Awesome! My mom already bought Elijah a little inchworm costume and at least the two costumes would coordinate. And a fish costume should be easy to find, right?

Wrong. With the exception of a Nemo costume on DisneyShopping.com, I haven't been able to find a single fish costume out there (and I have been to every corner of the Internet). It's not that I have anything against character costumes, but I would rather have a more generic, cute fish costume.

I have already tried to get Harrison to change his mind by tempting him with dinosaur, shark and spider costumes - no dice. He still wants to be a fish.

Any ideas?