we have 5 chalkboards in the missions closet. space them along the route pointing the way (sidewalk, down the outdoor stairs to the patio). Also have a chalkboard by the pot painting table explaining what to do.
28 Outdoor Lighting DIYs To Brighten Up Your Summer
This would be so fun after the farmer's market...gather a bunch of artisnal STUFF, and maybe have a PICNIC party where you haul everything to a serene setting. I do not picnic in serene settings nealy enough : )