Using a bright orange Grip-Lock on the throttle side for now after I lock the bike steering up (like in the photograph below). And usually don’t stop for long with my CE 04, as I don’t want people messing with it, specially with the sketchy weakly designed rear turn signals that can be easily broken.
Tried this small rear turn signal protector from Wunderlich America:
Wunderlich indicator protection long rear - Piece - black
Part No. 42841-302
It did not fit because our American rear turn signal design version is different from the European and other versions and the protector is too small and the rear turn signal will not fit through the hole to make it work.
Another American member (Powell Kopp) of the International CE 04 Facebook Group came up with a brilliant inexpensive solution: use a thick zip tie like the ones you use on dryer vents and wrap it tight around the base of the rear turn signal unit that connects with the scooter’s license plate bracket. It reinforces the rear turn signal to make it more robust and not as easy to break. The member that came up with this solution said that he bumped it hard after this inexpensive quick fix, and it held nicely without breaking. This might be the quick and easy fix we’ve all been waiting for!