I have an unusual rock I found in Penobscot Bay, just south of Belfast. It looks like it contains small fossils. That would be rare because the NE glaciers scraped down to bedrock before receding so very few fossils are found there. I can't tell if these are small fish or weird small mineral squiggles on metamorphic rock.

On my way to Belfast, ME many years ago I passed a sign advertising used fish. I've wondered for 30 years now exactly how one uses fish? As a fashion accessory, an arcane tool, or as an insect repellent? Ideas, anyone?