Aber went through a stage of loosing collars so I bought a cheap one and just wrote my phone number etc on it in marker, he didn't loose that one though so had to buy him a new one when the marker wore off.
Keep an eye out for cheap ones and bulk buy, a short while ago tesco were selling theirs for 12p so I bought 6 and they lasted me a while. People are still selling the same ones on eBay for about £2 Inc postage so may be worth a look
