random vibrations and clatterings
http://xkcd.com/705/
Absolute Encoder Module for Arduino
Available
$10.95 USD
OctosonarX2 – connect 16 x HC-SR04 to Arduino
$24.95 USD
Toolbox Drawer Tags Visible From Above for Old Harbor Freight US General Series 2 Cabinets and Chests
$10 USD
Printer Stand compatible with Dymo LabelWriter 450 & Turbo
$14.95 USD