So many of my compatriots have binders with 9-pocket pages at shows, and sketch cards inside that they themselves drew. Even writer friends of mine with a modicum of drawing skill (or better) have managed to sell many sketch cards this way.
Only problem is, I can't draw (at all). So I hit on the bright idea of asking artists that I've worked with on published projects to repurpose any color commissions they've done into one-of-a-kind card-sized prints, and I'd split the money with them. One for $3, two for $5. No idea if it will work, but it's worth a shot! What do you think?