Wow, ya'll took the word "challenge" seriously! Here's two that I made, along with another sweep-wing barbed point out of cooked Texas chert on the right. The other two are made of jasper, just like the originals. The large circle is a penny for size comparison.
Making these type points with long barbs is not easy. One wrong move and your barb is broken. My advice for those who haven't made these type of points: do your notching early, while the point is still a bit bigger and beefy, then narrow your sides in carefully to the desired shape. If you try to make those notches as the last step, you're much more likely to break the barbs off.
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