If you're a smoker, than this is the gadget for you. This USB powered ashtray is the ultimate USB accessory because it actually has the ability to reduce the amount of smoke around your monitor and other computer hardware. Turn on the USB ashtray and smoke is sucked through a removable and easy to clean filter which resides inside the closeable lid.
USB powered ashtray on wheels is sure to spark up conversation, or at least some odd looks from your boss who already has a no smoking policy in place. (Fill the tray with scented pellets or potpourri as an alternative to getting fired or dying at a young age)