Can you identify these items?
Is anyone able to tell me what these are?
The openings are tapered as though whatever is placed in them is meant to be easy to remove. They don't look like the shape of anything I can think of, especially the semi-circles. I don't think they are pastry cutters, they are too thick and would be made of metal, plus...the shapes. I doubt they are molds, they wouldn't have an open bottom.
Best Answer
Oh...wait...I should have thought of a reverse image search.
It seems they are dumpling molds. https://rotanya.com/product/magic-dumpling-model/
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Answer 2
They are, in fact, dumpling press trays. Here is an exact match
Answer 3
To me they look like they could be applied to the other end of a (piston) potato masher in order to obtain thicker or star shaped sticks of dough, for example for churros or for Italian "passatelli".
Answer 4
The design and angle of the rim suggests they are attachments for extruding. If they were molds, they'd have little 'legs' like in molds in the magic dumpling model pictures your reverse image searched. So I agree with @DavidP
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