Yes - plenty of Royal Caribbean pens and Royal Caribbean pads. There is a strict protocol that you'll be using anyways in how to serve the guests . . so be prepared for lots of training your first 2 weeks onboard.
You will need to buy all your uniforms onboard - but do bring your own shoes - you'll need flat black for your evening uniforms, and all white sneakers/trainers for your day uniform (if it's warm and you're wearing shorts)