What Wierd Ingredients Do You Use? Options

I want to kow what kind of wierd, or out of the ordinary ingredients you use in your powders, or oils? You don't have to put entire recipes as I know alot of people are secretive when it comes to their powders & oils, just some wierd single ingredients you may use to give your stuff a little oomph. Example, one ingredient I use in my cursing/war powder is powdered mosasaur tooth. I like to buy Dino fossils & petrified wood & fossilized plants & powder them & use them in my powders. Other out of the ordinary ingredients I've used are human bones & burned & powdered snake skin. So, I know some of you have SOME out of the ordinary ingredients you use, let's hear 'em ;-).

.::Sempre Bene::..::Chris::.
-Fiat Lux

Some of the unusual ingrediants i've used are human teeth, rabbit bones, melted glacier ice and even powered boric acid.
The last of those I found is effective when the color green is involved in a ritual in some way. When boric acid is added to a flammable mixture, the flames burn green.
Another odd ingrediant I use is glass ground down to a coarse powder. I take a small pane of glass and charge it in the manner of a talisman and then grind it up to be included in the powder. Although care needs to be taken with it as it's quite abrasive.
Also I've used dried papyrus to press my own paper for sigils, incantations etc.....