DIY Tire Tunnel

Use some old tires to make a play tunnel for your dog! Pick up some use tires from a tire store or junkyard. Paint the tires if desired. Drill a couple holes in what will be the base of each tire. Dig a shallow rectangular hole and stand the tires in the pit with the drilled holes in the tires on the ground for drainage. Consider attaching the tires with nuts and bolts for added stability. Fill in the hole, pushing the dirt into the cavity of each tire to create a flat walking surface inside the tunnel.