in the woods and the dark lair
Yes.
At Ludi
pretty much anywere in maplestory near hennnesys..... many places
internet
At Ludibrum
my bum :)
In Sleepywood dungeon
You can get them from Mushmom and Mushmom's Grave.
Henesys
You can't.
Not horns as such (like you would find on a rhino). but - there are 'horns' on some lizards, such as some chameleons.
you can find octopus by kerning city. they are in the construction site