I saw this old as video on youtube a while back, I can't find it now but he had wire mesh, like the fly screen stuff, and laced teeth floss through it, poked the mess through the hole(holding onto the floss) then pulled on the floss to pull the mesh back and flush with the metal, then pulled the floss outwards and taped it to the panel on each side of the hole! Then bogged it up as usual over the mesh! The moral behind this story is use flossing stuff
:(