SignalFlare

A small bright object in the sky. Not to be confused with TheSun, TheMoon, AuroraBorealis (you'd have to have seriously messed up vision and a lot of cloud cover) or GlobalThermonuclearWar? (the last two of these are large bright objects in the sky).

Among other uses, has a small but non-zero chance of getting AndrewSchoonmaker's attention.

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Also, objects which numbered about 2000 on a hypothetical desert island during the Spring 2001 E4 class. A key to survival, but they pale in comparison too......

GROUP 2'S ROLLING BALL CLOCK!!!!!!!!!! (oh, hell yes)