What do i do with KR Skull's extra bits?
 

So KR Skull here came with:

Half a clear upper body, and most of a head. I'm aware this model is used for maydifferent characters. What is the clear half torse used for?

He also came with an extra gaia memory, and two different looking gaia memroys why are these ones different looking?

Two version of the bat camera.

And a round clear piece...i have no idea what that is...is it part of spider?

ANYWAYS! I have paint and markers and a little know how. What can i do with these? I like to turn them into something cool.

-Are there any stickers i can get for the other memorys?
-What memorys should they be?
-What is that round clear bit for?
-Does anyone have a painted/stickered picture of this bat camera so i can paint it up?