Emailed some images to Magma, they said to send in some actual samples as they can't make orders via images or descriptions alone. They also mailed me a form to fill in thats explains that all the direct sales products they carry are taken on a sale or return basis, usually with a 45% discount from the retail price (50% for items with VAT). Also says they usually take 4- 6 weeks to contact you after you send your samples in.

Ive also found a really good company who design and distribute fresh, contemporary greeting cards. They allow people to mail in jpegs of their designs with the possiblity of purchasing or license of design or ideas, so will be mailing them some this weekend.