Here's a whole discussion forum on
Do-It-Yourself Electrolysis. Lots of useful info. One person cleared most of his body and estimated he saved something like $45k, which is inspirational. But to do this properly without scarring yourself takes practice, proper equipment, patience - I'm told. I really like the idea of doing the work myself, being a DIY type.
I'm having the black hairs on my face done by a pro anyway, to get started. Maybe I'll go to her for the greys too. Or I'll have the confidence if I can get the hang of zapping body hairs first.
I know a gal who cleared her chest with the
Clean and Easy Deluxe when it was called the One Touch. Sells for $50 or so including shipping. Lots of negative reviews of course, largely from people who didn't add the necessary secondary equipment (magnification, good workbench, strong lighting), or just jabbed at a few follicles and bent the needle and started typing on Amazon in a huff.