Ten weirdest blades on the planet?

[Tim Simmons]

The information I have found suggests these are cult knives and by that I did think they were non functional. I am no longer certain about the non functional idea all depends how you hold and intend to use, especially the large one which has a well formed edge to the blade. Reminds me of some of those rather odd shaped small indonesian blades. Older members might recall these examples.