I shopped around online, locally, and like on Craigslist and ebay. Ebay seemed the way to go just cuz there's lots of options and so many that you can usually get them cheap even with the $20 shipping. Eventually though, I bought mine at a local pet store. I went to one, too expensive. Went to another one and SOLD!! Really cheap. You just gotta be determined and do some legwork. Good luck!