Wow, a Propeller Hat Flight Dynamics T shirt ! These shirts are so hot, they’re literally flying off the shelves. Scientists, Geeks, Wildebeests, your Grandma  you name it they love’em. The Propeller Hat T shirt. A cool tribute to Sci-Fi writer Ray Nelson, the inventor of the Propeller Hat.
Skreened

Wow, a Propeller Hat Flight Dynamics T shirt ! These shirts are so hot, they’re literally flying off the shelves. Scientists, Geeks, Wildebeests, your Grandma  you name it they love’em. The Propeller Hat T shirt. A cool tribute to Sci-Fi writer Ray Nelson, the inventor of the Propeller Hat.

Skreened

Fresh Tesla coil T shirts…check’em out…
http://www.redbubble.com/people/gus3141592/works/8766196-tesla-coil
http://www.cafepress.com/bluemoontrading
Quantum Mechanics T shirt. Clean minimalist design, Schrodinger’s Equation…sweet.

Quantum Mechanics T shirt. Clean minimalist design, Schrodinger’s Equation…sweet.