[Dave Colangelo]

I have never seen them before but they are cool looking. Not sure what your skills are with a sewing machine but they don't look that hard to make. If you can get a few yards of fabric that match your seats I would stuff them with maybe 2 or 3 thin layers of pillow stuffing and close up the seam. if you get the sheets of stuffing you can just cut it to shape and slip it right in. I would then maybe put 2 or 4 snaps on the back and rivet the other side to the chassis to hold them down. If you dont want to hack into the car like that Velcro will work as well.

Try a PM or email to magnus and see if he will simply tell you what they are.

Regards
Dave