I have a pair of brand new chrome finisher tips that I bought for my 2007 Acura TSX that I ended up never using. I bought a new exhaust system that was polished stainless steel so I didn't need them. I'm pretty sure they will also fit on some other Honda's and Acura's. The part number is 18310-SDP-A02 and I also bought the replacement bolts.
These are no longer available from Honda but I paid around $65 each at the time, I'm asking $60 for the pair.