I started by filling the washed out cans with water and putting them in the freezer until frozen..
Then I used a hammer and this handy tool that I found in the tool box (bradle ?) and punched a pattern around the tin, I did mine by eye but you could mark it on with pen and wipe off after. The ice in the can stops the tin from denting as you punch the holes in, but you do need to hold it with a cloth as it sticks to your hands ! I worked on a chopping board with a towel on to stop the can moving around to much..
When you have finished punching your pattern, defrost the ice from the tin with hot water. I made little handles by threading beads on to wire and attaching through holes on each side of the tin..
And voila , tin can lanterns, I think they would be even better sprayed in bright colours.
Ideal to line up along the table when eating outside..
A friend came in when I was making these and said she had just been looking at some in M & S !