Okay this was a little something I did after a couple of times of having my cup fly out as I was making a turn. I just took one of those cheap beer cushie things (made of foam) and cut it down to become level with the top of the cup holder. I believe nearly every one you look at is going to have lettering on it. Those silly sayings and what not. I don't think they come blank.
So anyway I found one that was black. I then stuck sticky velcro on the bottom of the cushie and velcro on the bottom of the cupholder. It sits in there pretty snug and whatever cup I put in it doesn't move when I don't want it to. Not every cup is going to fit mind you but it's good for fast food and some bottles. I'd add a pic but it's pretty self-explanatory as to what it looks like.
So anyway I found one that was black. I then stuck sticky velcro on the bottom of the cushie and velcro on the bottom of the cupholder. It sits in there pretty snug and whatever cup I put in it doesn't move when I don't want it to. Not every cup is going to fit mind you but it's good for fast food and some bottles. I'd add a pic but it's pretty self-explanatory as to what it looks like.