I've been working on these promo cards for my etsy shop. I kept them fairly simple ... I printed the cards on brightly colored cardstock, trimmed them to size and added little handstitched pins.
Total cost: under 10 cents each + time invested. I feel they give a good representation of my little shop.
I plan to include a card with each order I send out and will also be using them for a "promo swap" with other etsy crafters.
Interested in selling your handmade goodies? Check out etsy.com!