The combo of mechanical arms are called N1-C and B1-O, sort of reminders of C-3PO and T2-D2 from Star Wars. And maybe an earlier movie robot, too.

They serve on the Royal Caribbean Line’s newest and most technically-advanced cruise ship in its aptly-named Bionic Bar. After you belly up, whether you order a Bloody Mary or Scotch on the rocks, a robot will have the drink in front of you in a quick minute or so.

It all sounds great to us, and if we’re lucky enough to sail on the new RCL ship, we just have one question: How much do you tip a robot bartender? Further, what do you use as a tip? Are three screws, two wing nuts and a bolt enough? 

For more information on the Quantum of the Seas and other RCL schedules, go to www.royalcaribbean.com