I tried a couple of suction mount ones for the side windows, and a clamping one from the seat rail, but they'd all fall down or sag after a few minutes. Settled on the cheapo way with string and that's been going strong for the last 3 years no problems. If you want one screen between two in the back, I use a longer piece of string between the 2 head rests. Although that does swing a bit if you're not on a motorway / perfect road. 

Maybe theres a bit more of a macguyver solution? I have a set of seat covers for my VRS seats from Amazon, they are the type that slide on from the top and completely cover the seat. I would imagine cutting the front of the seat cover off completely leaving the bit that goes over the headrest, then chop and adapt the rear of the cover to have pockets, fit a tablet holder etc?

Edited 20 November, 20187 yr by ExSEAT