I don't know if it is an item, but krylo got the ability to summon a demon that will open up any jar every 20 minutes...

It's an item... and that's ALL the demon will do, is open Jars.

I hope at some point in the RP our lives will depend on a jar that needs to be opened but no one in the group is strong enough to do so...

That would of course be the greatest irony...

"The cure to the disease is in that jar, but none of us can open it!"
"Stand aside mortals..." *Summons Demon*
"What is thy bidding my Mast- Damnit, not you again!"
"That's right, do your duty!"
*Demon, cursing and muttering, opens the jar and leaves* *And there was much rejoicing*
"Yay."

I have another idea how we could use such a demon.

*demon is summoned*
"What is your bidding?"
"There is a jar at the other end of the hallway, go open it."
"You mean at the end of this trap infested corridor master?"
"Shut up and go trap monkey."
*the demon's muttering can be heard as he progresses down the hall, occasionally punctuated metallic sounds and screams*

Hah! Good idea Gato. I'm adding a 'jar' to Janus's equipment... thus he can roll a jar through the corridor, so the demon would actually be going to open it. (Otherwise I'm not sure if it would work... it's pretty clear that the demon can ONLY open jars for it's master with that item)

Tis reminds me of the Star Warz Gangsta Rap...

Hahaha, someone else DOES know it exists!

That is where I thought up the line, popped into my head when I was thinking of what the demon could say...

EDIT: Wow, that version isn't as good as the one I have saved on my comp...

We got Death Star (Death Star)
We got Death Star (Death Star)
We got Death Star (Death Star)
We got Death Star (Death Star)
An' you know that we got (the Death Star)...
An' you know that we got (the Death Star)...

EDIT: Where did you get it from?

Loooong time ago, from Atom Films. Lots of little extra animations in it. The rap is the same, just the animation quality is better.