Dealing with Rapid Prototyping Obstacles?

Quick turnarounds on working pre-production units for durable display and data acquisition devices can be difficult. Do you find yourself in these situations? You know basically what you need, but not how to get there to create a finished working prototype (molding, coating, fabrication, printing, fastening and assembly).

You have a plastic window and are unsure of how to bond it to your display or data acquisition device – what is the best method? Liquid Glue? Sonic Welding? Adhesive Tape? Liquid glue is difficult to apply and messy. Sonic welding takes specialty equipment, is limited to certain materials and requires 3D geometries.