Maid cafés are a very well-known eccentricity in Japan. Young women dress as maids and cater to customers' whims. While my friend was visiting from the US, we decided to go to one in my neighborhood. We ordered the "Maid's Choice" dessert and this came to the table. Later when I ordered tea to go with it the maid stirred the cream and sugar in for me while having us all make cute stirring sounds.
You're not allowed to take photos of the maids unless you pay for the in-house polaroids or the printed headshots sold at the register, but you can take all the photos of your food as you want once you warn them that you'll be taking photos of the food, and the maids will take your picture with your food if you ask (of course, they may ask you if you want one--they are supposed to be maids, after all).