Workstation Bar Sink Accessory - 9" Bamboo Cutting Board (LCB9) – Create Good Sinks
Over the Sink Cutting Board : 8 Steps (with Pictures) - Instructables
Amazon.com: 15x13x3/4” RV Sink Cover with Adjustable Rubber Feet - Solid Oak with Food-Safe Oil Finish - Dual Purpose Sink Cover and Cutting Board Add Counter Space in Your RV Kitchen :
KRAUS Workstation Kitchen Sink Solid Bamboo Cutting Board/Serving Board KCB-WS02BB - The Home Depot