What happens next?

How to make a padlock shim
Find a good can.
You can use just about any aluminum soda or beer can. The only requirement is that the sides of the can be smooth (without ridges), since you will be using the metal from the sides to make the shim.

Options: a. What i'm seeing is : Makes a 1/4 inch opening for water to escape. Wrap aluminum duct tape around the can.. b. You can also decorate your can with paint, tack and/or something. Find a can with quite shallow sides, or omit the edges if you prefer.. c. If you can find an open can, a drill and glue will work as well, so as to make sure that the can is as clean as possible. Trim the edges so that the can can hang out properly.. d. Empty the can completely and rinse it out with warm water. Use scissors, tin snips, or a knife to cut off the top and bottom of the can..
d.