Running down the spine, of anything, not just of a spine structure. anyone have one? i really like the idea of it, running straight down your back, full center. i have been looking/thinking of designs that i could take to an artist but am completely stuck. an inspiration is maynards (tool) but i don't want to get exactly like that because whenever someone in the know would see it, i'd look like an arse. anyone with any pictures at all just to get my brain flowing?