I'm sure there was a tip on the homepage about buying one of these but I can't find any other than the Thermal Food Pots that GLTC do made by Thermos. They're a bit expensive at £12 each - anyone know where else I could buy something like this? I want to take out a meal for ds2, who's 9 months. I can get him to eat it cold from a jar, but I'd prefer to take out a nice warmed homemade meal for him!