Let’s think carefully about this. You mentioned a few key clues:
It was found in a drawer that had been locked for years. It’s tiny. It’s not a spoon.

Since the item is very small, it could be something like a jewel, a key, a piece of old hardware, or a trinket. The fact that it was in a locked drawer for many years might indicate it was valuable, sentimental, or private.
Some possibilities include:
A tiny key – maybe for a jewelry box, diary, or small lock. A locket or charm – something worn as jewelry that’s small but precious. A thimble – used for sewing; tiny and easy to forget in drawers. A tiny collectible – like a miniature coin, figurine, or keepsake. A tiny tool – like a watch screwdriver or jewelry repair tool.
A few questions to narrow it down:
Is it metal, plastic, or another material? Does it look like it belongs to jewelry, a tool, or a toy? Does it have any markings, engravings, or moving parts?
With those details, I can probably identify it more precisely.