I'm guessing a resistor of equal value to the buzzer would satisfy the flasher. I disconnected mine, now my flasher doesn't flash unless I only move the switch part way, I guess I find the right amount of resistance with the switch. I would also think that different bulbs might do the trick, but not sure.
Now to measure the buzzer's resistance -after I find it again. If it's like everything else today, it's still on the headlight ear(looked for my lighter that was in my hand, looked for my keys that were in my ignition -I can tell I took some pain pills yesterday).