Well, the restroom has been finished and boy does it look good! As mentioned before, in a nod to the 223's Rio Grande heritage, the walls were painted in the aspen gold and silver four-stripe scheme that adorned many of the D&RGW's passenger cars and locomotives.
Some close-ups of the decorations:
Print of a Gil Bennett painting of the 223 (which is for sale, by the way, on the chapter ebay page)
This shield was made by Jay, who was behind the improvements to the restroom. If the latin confuses you, it means "volunteer labor", an appropriate slogan for an all-volunteer, donation-funded project.
And of course, some golden spikes. This is Utah, after all, and the 1869 completion of the Trancontinental Railroad is as much a part of the museum's heritage as the 223.
Some have remarked that we probably have the best-looking restroom in any restoration shop in the country. While most of us have little to compare to, you just can't beat the four-stripe scheme.
But wait...Jay wasn't content just to work on the restroom, and moved on to build a mug rack for the coffee station! Thanks, Jay, for your help.