
I guess it was more difficult that I expected. Two correct answers though. Well done to Adrian and Ellen D. Yes is a pie funnel / vent / chimney. One of my Mothers. It must be at least fifty years old and was used regularly. My thanks also to Ragged Robin for having a go.
Part of an object this time:

Once upon a time it was used daily but rarely sees the light of day now. If you would like to make a guess as to what it is please leave it in the comments. They will be revealed, with the answer, next Monday.