I'm not sure how, but it seems that there should be a way. At the airport, TSA has a wooden cane that they lend you just while you walk through security (the metal detector). In exchange, they take your metal hiking stick away and pass it around outside the metal detector. After you get through the metal detector with the wooden cane, you and TSA trade back (trust me, they want that wooden cane as much as your DH wants his hiking stick) and all's right with the world. Now, does WDW security have a wooden cane? That I don't know.