Dodo,
They can be made, but you'd have to make a gaZILLION to make any money for yor time. Plus for the average guy to take the time/effort to squish the little ears...JB Weld or Gorilla Glue works best/faster.
When the ity bity lug piece is missing, I have used JB to hold the outer frame to the door panel [4 little spots], insert glass & JB the inner frame in place [4 more little spots]. Faster than thoes ity bity machine screws.
They only hold the inner frame on that holds the face & adv. glass.
db
