Nah, pretty sure its miniature sand-hogs (briar-hogs) with the smallest tunneling equipment known to man.They use a flexible drill bit to drill weird pipes like this. I imagine it as a tiny drill bit on a flexible shaft with some sort of way to guide it, but I've never seen it.
Not how, but why? [:crazy:]
I really want this but 476 is to much for me
Now if you are MAN ENOUGH to smoke that thing in public is a different question