Pedal Plate: Get more out of your road bike! by Marc van der Heide — Kickstarter
Pedal plates - Halo Sports
Pedal Plate | Pedal adapter
Amazon.com: Thinvik Road Bike Clipless Pedal Convert to Flat Pedals,Universal Platform Pedal Adapters for Shimano SPD-SL System Pedal(Only Work on Shimano Road Bike Pedals) : Everything Else