Whats the best craft item you have found in a charity shop/car boot sale ?

I never see anything myself worth speaking off (apart from the wool in Blythswoods in Wick) but my neighbour is Queen of finding a bargain.

She often comes home with old wifies sewing baskets crammed to the brim or really nice wool at silly prices (50p a ball of Fizz wool, still in production) and not one but 2 blackwork kits for 50p each.