Sonya, the lanyards are cords or straps that hang around your neck, with a clear plastic pocket that can hold your Key to the World card and a driver's license. Very handy, as you'll need to keep your KTTW nearby all the time. If you can't find these at home, they sell these in the onboard shops for around $6.50.
Some other things that did/would have come in handy on the Magic last week (most of these were already mentioned in other posts, but here goes anyway):
* Post-It notes (for leaving each other notes on the mirror in the stateroom)
* Power Strip (hubby laughed when I packed it, but the battery charger for my digital camera wouldn't have worked in the electrical outlets otherwise.)
* large Ziploc bags
* Closet shoe organizer (the vertical kind that hangs from the closet rod. Used this for shoes, socks, belts, hats, the other small things that usually clutter our room.)
* Hair Dryer. (I didn't pack mine, and regretted it every day. The one provided in the stateroom is very wimpy and difficult to handle. Someone else suggested this before my trip, but I didn't listen...)
* Solid Air Freshener. (It really did make the room more pleasant.)
* Large clasp envelopes. (for receipts, misc papers you want to keep, photos, etc.)
* And a big amen to the extra wire hangers!!