Use old towels to make this huge beach blanket. Add a vinyl tablecloth to the back: blocks sand, doubles as tablecloth. Road trip must-have. To be able to machine wash the blanket, I would use Velcro to attach the tablecloth to the towel/blanket.
Sew up a waterproof blanket to keep dry on the wet grass during your next picnic, or add pockets to each corner to keep track of all your things on your next beach day. Start sewing for summer with these 25 DIY Blankets for the Beach, Pool or Picnic.