Thanks everyone! You have made me feel much better. I have pm'ed everyone that have asked about them in this thread.

Lacey, to answer your questions. My mom uses a pattern for them. The pattern made smaller fish though and not all cats could fit into them so I had her enlarge the pattern to accommedate larger cats. And I have already been thinking of different variations that she can make when she gets time. I am also planning on making some kind of form in case we get some orders. About taking orders though I think we need to get some kind of deposit for orders. The reason I say this is that when she first started making them there were a couple people that ordered them and then when my mom made them I never heard anything else from them. Do you think people would have a problem with making a deposit on their order? I am so not a business minded person.