Target is testing a new on-the-go beauty service which will allow you to stick your hand in a robot that will paint your nails. This is only be tested in a few Targets and each one does have a person working it to explain how it works, along with clean up any messy edges.
The cost of the service is only $10 and takes about 10 min.
I think it's a cool concept if you need something quick, but I probably won't trade in my manicurist for a robot.