Does a 2.5" SATA enclosure with Firewire connections exist?

I’m replacing the drive in my MacBook and would like to reuse the old one as an external drive. However, I would prefer to have a firewire connection, but all I can find is USB only or USB and eSATA.

I’ve looked everywhere, but I can’t find one. Ideally, it would be less than $50, but at this point I’m just trying to find one.