It has a two small blades on the inside that you turn around the top of the bottle to slice the foil off the top. (downshiftology.com)
Smaller blades mean you'll have to break down larger pieces, but larger blades are tougher to store. (geekwrapped.com)
While the affect is somber, this prayer has a positive, redeeming passage to it: closer inspection reveals the presence of small blades of grass growing from the bare underside of the tabletops: a symbol of hope, life, and regeneration. (theseenjournal.org)