Curiously, Luke appears to be
carrying a
wooden walking
stick in lieu of his lightsaber, although Rey and Kylo Ren's promo shots show them armed with their sabers of their own.
He
carried a long
wooden map pointer
stick, and sometimes cracked it against his desk to emphasize the import of what was on his mind at any point in time, and of course used it on the huge pull - down map that covered the whole blackboard wall.