[sdiy] modified speak and spell

[Duc Chau]

Hi, all

Im new to bending and was wondering what I can expect to pay for a modified
speak and spell?  Where can I get these bending mods on the internet?  I
would like to buy a couple so I have a fountain to follow when I do my own
modifications.  Can someone tell me how much I can expect to pay for
something like this?

http://billtmiller.com/circuitbending/casper/

Does anyone have links to any sites that sell any instruments?

thanks