Do they sell like chair extenders anywhere? We just bought a dining room set that has 8 chairs, but only have it set up for 6 right now. I'd like to be able to use the two extra chairs for our bar, but they are currently too short. Right now they are counter height, but I'd like to make them bar height. Any ideas that won't look too tacky? I know they sell extenders to raise your bed height, so I was curious if they had something like that for chairs... Thanks!