I'm hoping these little snail zappers I made will save my newly planted seedlings this spring. I cut up some plastic bottles and stuck this copper barrier tape around them. Snails and slugs get a little electric shock from the copper. You can stick or nail the tape around your entire veggie patches if you've got raised beds with a timber structure but that's not going to work in my garden. I have tried it out around a few pots and it's working. You can buy the tape from Diggers or Bunnings.