There are small yellow disks scattered all over the cabin. You'll need 10 of them to solve a puzzle on board the ship.
What am I doing with the steering wheel?
Nine of them are in Magnus's cabin and one somewhere else. Here are the locations of all the disks.
In the cabin, there are two disks on the white table with the limerick letter --
-- two disks on the bed --
-- one disk on the blue table with the note from Dagny about luggage keys --
-- one disks on the phone machine on top of the TV --
-- two disks inside the stove --
-- and one above the door.
The last disk is in the storeroom in the Missti Skip.