Don’t know about pteruges but experiments with ancient technologies need to be evaluated carefully – recent thoughts on slingshot efficacy may have changed the picture: for example: Roman Slingshots in Scotland Don’t know about glued together denim either – opportunity for National Geographic article?
More on the “screaming mimis”:
But yeah, most of the ones I’ve seen, including the one I have, are of that lemon shape. Mine doesn’t have DEKA, or any of the other fun things cast on, unfortunately; those are out of my price range.
Those Romans– what a bunch of jokers!