This is a modification of http://www.thingiverse.com/thing:162367 for single and dual extrusion.
This is a customizable nameplate that is self-centering vertically and horizontally. The block is tilted back 25 degrees from the vertical. It is designed to be printed in two colours by using the Pause @zpos feature with the Replicator2 for a single extruder.
Customizer allows a view of the complete nameplate, the base, and the text part. All three files are generated when you select Create Thing. The partial files are used to assign colors to different extruders on the Replicator2x.
Should you have a single extruder, the nameplate is printed with the background colour first and then the text colour. This is done by setting your printer to Pause @zpos = 17 mm. When this height is reached the printer will allow you to change the filament. The Pause @zpos option is set after the printer has started to print. Go to the Utilities menu. This option is available on a Replicator2 with firmware version 7.3 or newer.