I have a homemade one. Adapted with a few extras by my husband. For instance it has two lights on it. One to tell me it's on and another to tell me that there is actually output. Plus we bought little stick on timers and stuck them to the outside of the plastic case so that I could easily time it. And, very importantly to me, the battery is in a clip on the outside so that I can easily and quickly change them. I absolutly hate having to fight to change a battery.
John, I agree, it gets tedious to daily zap. And twice a day is even more tedious. I did it for about two months, took a break through christmas, and am back to it. But at this point, now that the novelty is gone, I'm having a hard time remembering to do it. I am trying to start it back up because I have some moles which are starting to itch again. When I was first zapping they were peeling off and going away as though they were warts. Since I thought this was odd to have moles behave this way I definitly want the rest of the itchy ones gone. I'm trying to find a comfortable way to zap without having to hold the things in my hands. I find the wires annoying when I tried to just attach them to my wrists so I may end up attaching them on my upper arm and thigh. What I really need is some type of flat handle or conducting pad.