Store › OTG Patch Image 1 of 2 Image 2 of 2 OTG Patch $12.00 Show your support for OTG with this new OTC circle patch! This is a rubber Patch with a Velcro backing. Quantity: Add To Cart Added! Show your support for OTG with this new OTC circle patch! This is a rubber Patch with a Velcro backing.