Extra buttons are offered for students who want one, too. “Because gender is, itself, fluid and up to the individual,” a posted sign at the libraries explains.

In Singapore, MasterCard has unveiled a credit card to be released in January 2013 that includes "an embedded LCD display and touch-sensitive buttons," the company said this week.

advertisement 06-02-2016 TECH Google Built A Giant Display Out Of Arcade Buttons, And It’s Amazing It has fewer pixels than your Apple Watch, but it’s big and messy and mesmerizing and fun.