cans

CRUSHED CANS
an unappreciated art form
or a world of information

Are not the gentle flow lines brought about by the crushing of a soda can in themselves works of art? Perhaps it's their commonplace which prevents us from appreciating their true beauty!

In addition to extending your esthetic senses, try exercising and extending your grey matter.
These cans were each crushed by a different process.
Who did what to which?
For your convenience, they are labeled A, B, C and D.