It was my first time running across a wishing well, so I decided to test some items to see what they'd do. The well took both forms of oincs as expected
but I noticed I was also prompted to "give" other, mundane items when I held them over the well (honeycomb, dry grass, pig skin)
Not all items give this option: things like tools and weapons don't seem to trigger that prompt. But while the well will consume the oincs, it won't actually take the non-monetary stuff. It just remains in your cursor/hand.
I'm not sure if the well is supposed to take "junk" items (and react accordingly) or if the wrong items are showing the give option, but either way something is off.
- Enter temple - Find/enter room with wishing well - Attempt to give wishing well pig skin