Comment by Lio

I know you’re joking but there’s a simpler way to get the same effect.

There are people who attach a pool noodle to the back of their bike sticking out straight into the road less than proper passing distance.

They are highly visible and the idea is that drivers avoid them because they don’t know if they will damage their car or not.

In the case of a case of a close pass the pool noodle just bends out of the way.

The was also a laser product that projected a line onto the ground around the cyclist. I don’t think it worked very well though.