Portable restroom decals from Allied Graphics are available in custom shapes and sizes, and can be color-matched to any portable unit. The decals have an adhesive designed to stick to the plastic on portable units, including textured surfaces. QR codes can be printed onto the decals. Lack-of-service tags, service decals, men/women decals and unit numbers are also available. 763/428-8365; www.allied-graphics.com.