Actually, I figured it out last night. It's a blacksmith's hammer (you can see a suggestion of the handle off to the right) raising two "lightning bolt" sparks when it hits the anvil. Which is ironic considering that JJFU doesn't actually create like a smith would with his hammer and anvil, they just decorate other people's stuff."So far know one knows what the logo is supposed to be. The most prevalent theory is that it is a flying Pope hat being struck by lightning, which is an interesting marketing take."