Can you take off your backback... Wildshape into an Air Elemental (small) and then put the backpack back on?
What about weapons and/or other equipment?
What about other elementals? Earth? Water? Fire? Would he Fire Elemental burn off the backpack straps or force a magical Fire Save?
What about Handy Haversacks?
Our current campaign I decided as a Gnome Druid to take off my backpack and then wildshape and then put the backpack(Handy haversack) back on.. because then I can use scrolls or potions in the backback. (normally your backpack melds into your form)..We were going to fight a Dragon so thats why I did this.
The Gm said no problem... however I wonder what would happen with the other Elemental forms? Especially Fire Elemental/
Reasonably your backpack would then catch fire. They do have 'catch fire' rules for the fire elemental.
Stuff melds into at the point of transformation, not continuously afterwards. Otherwise everything you tried to pick up or manipulate that wasn't nailed down would just meld into you.
PolymorPhiCPouCh
prICe
5,000 gp
AurA moderate transmutation Cl 9th WeIght 1 lb.
This leather pouch is usually decorated with a druidic motif.
Within is an extradimensional space that can hold 4 cubic
feet or 40 pounds worth of items and otherwise functions as
a small bag of holding. If the bearer uses a polymorph effect
or wild shape to transform into an animal, dragon, elemental,
magical beast, plant, or vermin, the pouch never merges with
her body. It automatically relocates to an easily-accessible
place on her body (such as on a belt or a cord around her neck),
allowing her to access the pouch and items within it while she
is transformed.
ConstruCtIon requIrements Cost 2,500 GP
Craft Wondrous Item, polymorph, secret chest
There is this item from Ultimate Equipment, which I think helps you out a bit.