The little bowls I have used to craft these earrings are too small for tea and too large for egg cups, so I guess they are for nibbles - nuts and things. There is no named manufacturer's backstamp, no easily identifying maker's mark - nothing that tells me anything about these vessels except that they were designed in Australia and made in China.
There is nothing whatsoever vintage about them. I would guess that they are a mass-produced item from the early 2020's. I just think they have a very funky vibe. I love the modern and simple designs, and I think they make great earrings.
The silver in these earrings is sterling silver, and is stamped with the .925 stamp.
These earrings measure 24mm x 15mm x 5mm.
The earring hooks are sterling silver.

