Copyright by Inflatable Signs 2012 CNC Router 3-D Signage and CNC Routing Services Inflatable Signs. also offers dimensional letters and logos in a number of materials: PVC Acrylic Aluminum Polystyrene Foam Polycarbonate Ultra Board Channel Letters Wood  Inflatable Signs  provides cutting services at a wholesale rate to any companies who may not have the capabilities of CNC cutting. Sign shops, acrylic, plastic fabricators and wood workers can benefit by not having to pay out the costs of owning a CNC machine and labor to produce jobs! Let Inflatable Signs produce them for you!