Thank you for the clarification; from the article it looks like a piece of costume art.
Impressive results indeed!
I'm still thinking of some way to lay down a line of "wildlife tracks" while walking. Like the illustrations in old books. This could work but it's not subtle.
I want people to look at each other and ask "when did a duck come through here?"
edit: you've advanced technology in an important way here: It's the most efficient possible arrangement for kicking the printer when it goes wrong. You should patent that. "method of minimizing latency of percussive printer maintenance"
