Hi

I've got three GOS x boars, about 7 months now and coming up to killing weight. My problem is that when I got them as weaners, the guy who bred them said they were slap marked on the movement form, but when I actually got up close and personal with them, they aren't marked or ear tagged, so obviously I need to mark them before taking them to the abattoir. I don't think we will get more pigs as my other half is horribly allergic to them, plus the sheep take up as much spare time as I have.
I can't find anywhere that I can buy metal tags in quantities of less than 50, which is horribly expensive for three little pigs - a slap marker/ink/etc is even more. Anyone have any ideas? A source of cheap tags? Or any suggestions?
Mic