Bob, I contacted you about teh possibility of creating etched detail parts for vehicles. Here are some ideas I have come up with:
Mudflaps with company logo (Ford, Mack, Peterbilt, etc.)
New grills for Atlas Ford 8000 series (a slatted grill with blue oval emblem would change the area of the vehicle), Con-Cor Kenworth, GHQ Peterbilt
Exterior sun visor for trucks
Crash gaurd/bulkhead for various trucks (used on tractors hauling flatbad trailers to protect cabs from shifting cargo)
Side view mirrors for trucks and cars
Signal/marker lights for trucks
Fire truck detail set (shovel, ax, picks and poles, fan, jaws, hydrand wrench, etc
Etched replacment cab for GHQ Komatsu Front end loader, enclosed cab for backhow