What are 5 potential uses for an empty La Croix can?
1. Make your bike sound like it has an engine by wrapping the can around the back tire.
2. A percussion instrument to play along with friends in a jam session.  You could just crinkle it, hit it with a pen, or fill it with sand or debris and shake it.  
3. A baking tool.  You can used the bottom of the can to stamp out perfectly circle, uniform cookies from a rolled-out sheet of cookie dough.
4. A field razor.  Tear the can carefully to create an effective cutting device for emergency use.
5. A make shift ball to throw around with friends at the park. An empty can could be a fun projectile to use in a friendly game of 3 Flies Up.