"This is Highland Coo, my traveling companion, at the Egyptian pyramids. Initially, I bought him as a bit of a joke on holiday in Scotland. Yet now I find I can't travel without  him - when I pack my luggage he's up there with purse, camera and passport. I think he keeps watch on my valuables while I have a good  time, and in return I update his Facebook page with pictures of all  the famous sights he's seen."

Simone Dogherty, Oxford