Having lots of little ones which my family wouldn't take care of (26 hamsters and gerbils) I lined up godparents for them on a UK based forum. I have health sheets on each of them and have ensured that pairs will stay together.

A couple don't have godparents and I know my Mum would look after them (she just couldn't manage all of them!)

I even have a room plan so it is know what cage is where!!