It's six pairs of two rings stuck together with spacers inbewteen, mounted on the roller. Unforunately each ring is a little wide, so once assembled at the correct length there's only room for eight notched rings instead of nine. But that's okay, because I don't think I could separate the pairs into single rings.
yea nah that wouldn't be fun. Still though, it's awesome you've found something relevant. The closest I've seen are salt shakers with the same pattern, but scaled down. Or a real pineapple.
I like the Big Yellow Box's idea of those Poly Washers stacked, but I'm surprised no one has cut lengthwise down those. I also feel like with the right tools, making the frag body should be a piece of cake..like out of wood..the neck is still a combobulation to me :lol