That's pretty cool.
It reminds me of a Trans 101 seminar that we organized at a local university. The restroom question inevitably came up, and someone put signs over the male and female signs indicating "gender-neutral" restrooms. It was interesting to see that it made some non-trans people uncomfortable, so they went down the hall to use gender-assigned restrooms. Turned out to be an interesting discussion point and allowed people to experience how uncomfortable it can be to trans people to not have a restroom specifically for them.