Gen2 Used Keyfob

I bought used keyfobs for a gen2 (09) prius, not realizing that they are married to the vehicle to infamous chicken dance won't work. I understand that they can be "re-virginized" but I don't know how (I don't have techstream) or where to get it done. Does anyone know of a reputable business where I can get this done? I live in central IL, so I might have to send them off to get them done.

Are there any pitfalls in doing this? When I got this prius the seller only had one key fob. I tried an aftermarket keyfob, but it was pretty much crap. Given this I am assuming that this prius has only had 3, possibly 4, key fobs married to it.

Oh, these are silverback fobs.

TIA.