Check out these guys Sneakart.com. They are a North East company and are going on to great things. You heard it hear first, these guys have a fantastic product and I urge you to take a look.
For those looking to customise trainers or something different for any friends, family, children who like to be individual take a look at there massive range of stickers and sneakskins (the name of the transfers) at Sneakart.com
Take a look at this video which shows how easy it is to customise your trainers.