Tumbling stock markets, profit margins and the word Nasdaq may keep him awake at night, but the controller of the world's purse strings doesn't do stock markets.

BBC: Greenspan plays it safe

Lee, and Senior Vice President and Controller Mark L. Kuna both also sold shares of OSUR stock in the past week.

FORBES: CFOs Are Selling These Stocks: OSUR, DKS, P, MGAM, EROC

The hardware is actually a stock airsoft gun that's been gutted and stuffed with Xbox 360 controller parts, a rechargeable battery and an Arduino.

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