You can buy packs of headbands or hair clips there as well as artificial flowers. Build sculptures out of recycled items in your house. Fly a kite. These are fantastic since they make it easy to reach the panels from the ground. Make a sundial.
Go on a picnic. Meaning you can merrily shower the front side, back side, the conduit, the wiring or any of the junction boxes, without any risk of electric shock. My kids especially like growing sunflowers, pumpkins, peas, and multi colored carrots.