Anyone tried one of these? I didnt see anything when searching.
Ali Express Arm Rest

I used this site few times before, its like ebay of China.

 

I tried one from Aliexpress (though not the same model), and sold it almost immediately.
The plastic on mine smelled absolutely awful (I got nauseous from the fumes while unboxing it).
Mine was the one that has a flip-up lid (lined VERY thinly with faux-leather soft-touch plastic).

Mine is manual, so my right arm has enough to do that I haven't missed the armrest (and the rest of the time, I just keep both hands on the steering wheel).

Shipping to North America does take a very long time though (potentially 2 months).