Sew magnets into curtain seam
Stefan from Ulm sewed some Q-20-04-02-N
block magnets into the curtain seams for his "part-time camper."
The block magnets need to be fastened in the seam with a few stitches so they don't wander, or it would be difficult to put them back in the desired spots.
The thin block magnets don't need much space and keep a low profile in the curtain.
Now, Stefan can sleep at night in his darkened bus.
During the day, he can quickly take off the curtains and use the vehicle as a pick-up-truck again.
Instead of block magnets, Stefan could have also sewn sew-in magnets
directly on the fabric or place rubberised discs
on the fabric without having to sew the magnets in.