Disneyland's Secret Restroom
The Secret Restroom's sink is positioned near the entrance/exit. This is convenient for anyone who just wants to stop in and wash their hands, and leads to a natural business/wash/leave order of operations for others who are visiting to take care of more urgent matters.
The original sink in this position was a slightly more fancy pedestal model, but it was found that a certain number of guests got too close to the sink and stubbed their toe on the pedestal, so it was removed. Although Disney has a great love for style, it's always safety first!
Note that children and adults can request a stepstool from any nearby castmember if they have trouble reaching the sink at any time.
A tiny, natural-gas-powered water heater is positioned beneath the sink, giving instant access to hot water even during a park-wide power blackout.
As an added protection, the heater bathes all incoming water in ultraviolet light to kill any bacteria that might be lingering in the pipes, and chemically neutralizes fluoride for the benefit of paranoid, conspiracy-theory-loving guests.
The soap dispenser is an efficient, sturdy device with a clean design, as is only appropriate.
The soap itself is all natural, hypo-allergenic, vegan, and antibacterial. Its scent is changed seasonally, ranging from blooming flowers, to spring rain, to fresh snow, to falling leaves. At one point, during which the Disneyland "dream machine" was giving away free cars at the front gate, the soap had a "new car" smell.
The sink is always kept as sparkling clean as it was on the day of installation. In the close-up photo, you can see that it has been fitted with a drain cover that has holes large enough to allow a reasonable flow of water, but small enough to prevent the loss of dropped wedding rings or let curious children get a finger stuck.
You will notice that there are seven holes, one for each of Snow White's dwarves.