Top your workshop off with the Park Tool SBC-1 Spoke, Bearing, and Cotter Gauge. This gauge sizes ball bearings, crank cotters, and spokes, and thanks to its anodized aluminum finish, it will look dope for a long time.
Love this, makes it easy to measure spoke lengths. I wish the sides of the inches and the cm were on opposite sides but works well. Its really nice that the measurements are imprinted into the metal so that it doesn't wash off.