Hi all
i've come across this thread while investigating other leather sublimation techniques.
i'd like to point you in the direction of pictaleather.com at the minute the range do not include genuine leather but good quality PU products, the full leather range will be out in the next few months so watch this space or join the mailing list to stay informed.
In the meantime the service might be of interest to people here.
there's 2 options to work with pictaleather.
1 - send your design for printing on demand.
2 - buy the blank products and print them yourself using standard flat bed heat press.
hope this helps.