As far as pharms go, prolly the Endo OC's, the filler burns soooo fucking bad (some guy just had a thread about that yesterday). An Endo 80 is much bigger than an oc or abg 80, and i believe the Endo 20s are the same size as Endo 40s, so imagine the amount of filler in your nose... But OC's are better orally anyway, as long as they've been properly crushed.
Oh, and when I was in military school i snorted POWDERED JUICE MIX! YES! very dumb i know, but this is military school with no access to anything. I also ate shampoo in the hopes of some psychoactive being in the endless list of ingredients, didnt really care if there were any poisons in it, but this was a VERY desperate situation, and i dont just mean drug wise