I have a 5th wheel (North Shore 31RG) with two armchair/rockers side by side and no stable place to put a drink. If I put my, uh, soda pop on the floor, the dogs lick it and/or knock it over. Space ...
Studio Designs Calico Tech Laptop Stand http://www.wayfairsupply.com
(I can not do a clicky tonight... I don't know why.)
Scroll through these and see if you don't get some ideas. If it were me, I'd figure out a way to fasten a "swing away" tilt table to a nearby wall. I'd want some kind of cup holder in the surface.