How to Make a cord from Plastic Bottle and should work for aluminum cans. It has the benefit of easy adjustment to the with of the strap.
I’m ham radio i am using a lot of aluminum strips and I’m thinking that will turn a can into strops of metal. Not to mention once heated it should tighten up on anything you place it on.

This is a simple solar water purifier That is easy and simple to make.

This is another great idea Duct Tape has so many many many usages. This is another great one.

I am going to start making these in advance . Im tired of wind blowing my  magnesium dust everywhere. With this I can just put it in the pile i’m lighting. I’m thinking now I bet i could drill a chap bar from Harbor freight ( Like the one i’m using ) and make better filings. I might also plug it up with char cloth or cotton balls who know. I can see a lot of possibilities for this.