Thanks for your reply!
I didn't explain it very well. But what I am looking for is a fairly high density foam rubber that sits in the bottom of the cup holder to keep drink cups from sliding around and rattling while driving. I think the factory inserts on the X are pretty useless, so I stored them. I did try some of those dash pads you can get at the parts store, but they are pretty thin. So there was this guy in the... Excuse me for saying.. Piloteers news group who was die stamping foam rubber inserts for their rides. Also, My Dodge van came with foam inserts from the factory that keeps everything in its place. Just thinking it would be useful to have the same item in my X. I'll keep looking and I do find something, I,ll post it.