wire mesh question?

[Twimper]

So a quick question how would one make the edges of wire mesh safe? Currently, i have a converted aquarium cage with a DIY wire mesh top but at the moment I've had to put the top on upside down because the edges of the mesh are super sharp and I don't want my little penny hurting herself on it if she ever manages to reach it But it does mean that I have to deal with sharp bits instead and have already got a couple of scratches.

so any tips on blunting the edges of the mesh?