Here ya go Swede. Raw stubborness prevails and I finally made a hook. It's still in need of a bit of work, I.E. a barb on the end, but the raw shape is there. So it is possible, but the question is "is it worth it?" I don't think so.
Now, here's one for ya that I just came across today. I had a bunch of pieces of train slag laying around the house. If you don't know what that is, it's a sort of iron oxide stone, like man made hematite, that's created from the friction of the wheels on the tracks, and collects on the bottom of train, that eventually falls off and mixes with the track ballast. Can't miss it. Looks like shiny lava rock. Well, it turns out that this stuff knapps up just like a quality piece of fling and finishes off with a purty metallic sheen to boot. Here's a piece I've been messing with including some of the flakes that come off of it. Not the best specimen to start with, but I'll take a trip down to the train yards some time this week for some better quality shards.
Anyway, can't find any flint? Now you have a substitute;