I don't know about the cans and nails idea. I don't want my dog or anyone stepping on nails!
In fact I don't like using nails to build a blind simply because they become next years hazard. I use screws (they won't back out) or wire for blind building, and for decoys use heavier weights, ore one really heavy wieght with three to five dekes daisy chained together. The daisy chain thing is really good forup to three or four goose floaters ... the dekes are in small family groups, always in single file, always facing the wind.
"Chill Dude, these guys think the public pool and playground are communist plots"s - BBD2
What's so funny 'bout peace love and understanding?
Republicans take care of big money, for big money takes care of them ~ Will Rogers
E PLURIBUS UNUM