I had problem with rolling filament spools which were falling from my shelve and this creation prevents such a case.
This dashed line can be used as a nice decor in our workshop to signalize caution. It is similar to caution tape. It also works nice with any warning like those from here: https://www.thingiverse.com/thing:4656837
I recommend to print this with yellow and black filament with filament change option enabled.
Have fun and be cautious!

Prusa

I3 MK3S

No

No

0.2

20

Filament change