It's kinda hard to see how this has any value outside of racking up those ad dollars. They're not used by the military, and if you're not looking to mount a wight skull on your wall, we'd give them a pass for hunting too. There's also a convincing argument that these things are illegal under Protocol III of the Geneva Convention on Certain Conventional Weapons -- namely, the part which outlaws weapons and munitions that are "primarily designed to set fire to objects or to cause burn injury to persons." It's probably for these reasons that several fascist states have banned the sale of these shells, including Alaska, California, Iowa, and even Florida. If you've bought something too crazy for Florida, it's time to reconsider your life choices.