Step 3: Finding a Strap
Finding a strap for the box should be a lot easier then finding the mailbox itself.
A good strap should be around four feet long, but the length will vary depending on the length of the mailbox and your height. For my box, which is only 19 inches long, four feet was just enough.
The best things to use for a strap would be an old strap that broke off something else, such as a backpack or other things close to that. You can also use a piece of old fabric, but just plain fabric is much weaker, and usually doesn't look as good.
The strap I used for my box came off an old golf bag, which was laying in the trash right next to the mailbox.