Your nipples deserve the controlled zapping I have now - It's more enjoyable too as you can see the contact points instead of guessing... You'll love it in more ways than one.. Trust me please.
Pedrey1 - Too random with the mesh... I just put the crocodile clip on my nipple/cock and enjoy that bit of pleasure and then zap away until bored/sore. Does leave small burn blisters on contact with nipple but I like it!!. You have to try it. Can help you rewire yours as only 3 wires... 2 negative and 1 positive.
My bug zapper never worked so stripped it down and rewired it.. I have more control over mine now. Crocodile clip on 1 end and a loose wire/zapper end on the other.. Nipple zaps are easy and enjoyable now. Pedrey1 - I'll send you a video soon of my left nipple being zapped.. Promise. and it's nice too!!