I just tried some Bhut Jolokia powder and Scorpion Mix powder. Thermonuclear! The Bhut in particular had a great scent and flavor, but I can't describe it. "Cheerful and sunny". The paper bags used as padding gave off that scent and it was enthralling.
I overdid my first test of the Scorpion mix, but it was survivable. Intense, but I'm not scarred for life. Huge fun!