You might check out this site, which has a device for about US$200-something: Amanda's electrolysis device (Australian)
There are a couple of caveats, though-- I don't know what the regulatory status of this device is in the US-- it might be stopped at customs if they are not registered with FDA.
I do not know anyone who has purchased this device or used it. The manufacturer wrote to me, and *appears* to be honest and ethical, as well as an engineer.
I have not inspected the device personally, and I have no way of knowing about the manufacturers business practices at this time.
(note: this is not an endorsement, but a suggestion for further research. No claim is made as to the quality of this device or the service from this company)