I"m sure this has been asked, but I can't seem to find it.
Can we transmogrify staves to pole-arms, and vice versa?
"Similarly, they won’t allow you to change weapon or armor types. Sneaky death knights can’t make that breastplate look like a cloth robe, and you can’t make a one-handed axe look like a two-handed axe, or transform a sword’s appearance into that of a mace. Guns, bows, and crossbows will be the exception to this rule. "