To the founder, I would approach them for an advertising deal if at all possible.
http://hackaday.com/2012/04/30/tindie-an-etsy-for-electronic... http://hackaday.com/2012/06/27/an-etsy-for-electronics/
http://hackaday.com/2012/04/30/tindie-an-etsy-for-electronic... http://hackaday.com/2012/06/27/an-etsy-for-electronics/