I had dinner once at someone's house who lived on the Peak. The host was serving Hainan Chicken so there were quite a few dipping sauces that needs to be served on the side. The chicken comes out and the maid hands out the dipping sauces to each of us. It looked strangely familiar... the previous generation CX EY class red bowls for the salad/dessert items!
The "Antiseptic Paper Towel" wrapped in silver foil is a favorite item taken by FAs as inventory control doesn't care about/there is no way to track usage. FAs with pets loves them as wipes for their dogs after loo time.
The only thing I have pilfered from a meal tray is a fork and a spoon from WD biz on one of their final flights before merger with CP.