Amazon.com : Rolling Cane - The Cane That Rolls ! - specifically Designed to Easily Roll Over Small Flooring Transitions to Avoid Needing to Pick It Up with Each Step (Fuchsia Basket) :
Cane Holder For Mobility Aids - Broadway Home Medical
Folding Aluminum Mobility Cane w/ Roller Ball Tip
Ambutech Aluminum Cane with Marshmallow Roller Tip, Hook Style