It's a wine bottle and a tuna can. The can is mounted to the board and the bottle is suspended about 1/2 inch above the can. I used zip ties. It made it easy! Still had to drill holes but I love them. I got the idea from Fresh Eggs Daily on Facebook! I bet it's on Pinterest!
I have a hen who is handi-clucked. Lol handi-capped. Leg injury that never healed. She doesn't walk well. I need something for her too. Maybe I will think about using a small soda bottle for her! Awesome idea!!