Found this on one of the surplus sites I frequent. Even though it is used military surplus, it is more interesting than new made in china stuff.

3-MODE GERMAN EMERGENCY BEACON

Try this too

STOP STICK

I love how title is "EINE KLEINE" like it is the name of that thing

I also like "red circle on a stick". At least they are honest!

All the stuff they sell is described in a similar manner, have a look around. The classic catalog has hand drawn illustrations.

that stop stick is what the cops in germany used to pull you over with back in the day (70's to 80's); they would get in front of you and hold it out the window. now they use fancy LED signs...

__________________
1983 300SD (daily driver)
1991 420SEL (work in progress)
1979 300SD (future replacement for 83 SD)

RIP:
1983 300SD (totalled)
1986 420SEL