If you’ve got a few hours and a bit of patience, turn a wide-mouth bottle into a terrarium. Drop in some pebbles, activated charcoal, a little soil, and a small succulent. It’s basically a pet that can’t run away. Plus, you get to say, “Oh that? It’s my old gym bottle. We’ve been through things.”
Or, make a clever scoop for pet food, flour, or soil. Cut the bottle diagonally, leaving the handle (if it has one) intact. Sand the edges so you don’t slice your thumb open—trust me, I’ve learned this the hard way. Now you have a scoop that looks like a spaceship part. Your cat will be impressed.
What to Do with Old Reusable Water Bottles: Creative Ideas - The Zero