What's the wierdest ingredient you ever used?

[BitterPunk]

For example, has anyone tried using that Top Ramen powder?
Curiosity sparked the question!

[Elbone]

Kellogg's Frosted Flakes

[huskey-no.2]

I used coffee beans to get the flavour with no colour .... not very out there though.

I shall have to see what's in the cat litter tray and try harder ...

[ChrisKennedy]

Dried peanut butter.

[dunleav1]

A red tailed hawk took another bird (I think a dove) out of the air above my boil kettle while I was brewing a Belgian Wit.
I picked a few feathers out of the kettle.

So I'm saying dove feathers.

[linuxelf]

Mustard seed in a Rye Pale Ale.

[DannyW]

Swamp Cabbage. Somewhere I have pictures of us taking down one of the trees with a chainsaw and extracting the hearts with a hatchet. The ratio of work expended per unit of product harvested was extremely poor.

[pbts]

Damiana and Passionflower

I used far too much though so it didn't turn out well at all.

@Linuxelf: mustard sounds great!