I cut the tops and bottoms off the cans with a pair of nail scissors, then I cut the tube open with big scissors, to make a flat sheet. Next I made lots of cuts along the bottom edge, to within one inch of the top edge, like a frill. Then cut the piece in half, and curled the frills using the small scissors. It's very sharp, I've got several cuts on my right thumb.
Next I got a broom handle and starting one foot from the end, I wrapped the frill round and made sure it was a tight fit, and nailed each one in place. Keep adding more frills, till I got to the other end.