I"ve not had any luck in finding buttons that will sit on top of say the the keypad on a 1602 LCD board to bring the button out through a case. It might be I don't know the exact terms to search for. I find pushbutton switches but nothing like what I'm hoping for. Others just buy switches to replace them with long shafts. I know there has to be a cleaner method. It should be a cap of some sort. Anyone have any ideas?