There's been a fridge magnet resurgence recently and I am now producing a set to match the new mugs. These are flexible magnets (89mm x 51mm) and have six  designs in the set (Castle, Standing Stones, The Caledonian Isles, Brodick Panorama, Brodick Pier at Sunrise and Lagg Beach). The are commercially printed. 
If you have magnets from other companies (like the Arran Cheese Shop and the Heritage Museum, these are the same size (as I produce for these companies too). 
 
£12 inc UK Postage.