I hit the jackpot the other day! I've never really done any flint knapping, so figuring out how to break up this stuff was harder than I thought. I ended up just smashing rocks together. Those little flakes are sharp!! I wanted to make a hoko knife, but making one with a modern knife isn't much of a challenge. Splitting with flint though... it takes some thought. I wedged a piece of flint in a hole and beat on the stick to start a split, which started out okay. Annnnnnd then I broke it. Once a split starts to go sideways it's tough to straighten it back out. This piece was poplar. So I started over with sycamore. It's super stringy when you break it, so I thought maybe it'd be easier to split and keep the sides straight. It wasn't too easy to start a split, just with that little flake of flint, but after some fiddling I got it. I kept splitting until the two sides were fairly even, then trimmed off the extra. Sawing with flint is kinda fun! I tried to peel off some strips of poplar bark to hold my hoko knife together, but that wasn't happening. It just comes off in chunks. I found some dried poplar inner bark though, and it worked much better. Finished! It sure ain't pretty, and I think a thinner stick might have closed around the flint better, but it works! This here is some bedrock bushcraft! yabba dabba doo!!