I've
been using a roll of duct tape,but it's not very fool-proof. If you use half the tape,it's useless as a cup holder;full coffee mug and a sharp corner combine into a recipe for disaster-hope you don't have anything up front that can't take a coffee bath. I have a console I was given that has GREAT cup holders,but the console is too big for everything I own. I plan to switch to bucket seats,and can use it then. Those boaters pivoting deelies work pretty well,I have one on my Harley,but in a four wheeler,especially when you get on the side/side oscillating bumps for a distance (like crossing a rock patch) or
really rough ground,they've been known to invert and empty the drink onto the floor,or whatever's directly under 'em. OR-just tuck your drink between your thighs during the rough sections;the seat will dry out soon enough.
I know we've all thought,"Why couldn't I put a little gyro on a cup holder?" Eventually somebody's bound to come up with one;then it'll just be a matter of working up the $$$$ for one,and finding a place for it.
Speed