Get the AC 1000 from HQ. Go to the beacon & use the AC 1000 to blow the jet pack fuel to you. Use the scissors in your spy phone to cut the balloon off the fuel :)
Herbert (the polar bear), left behind the fur in 'The Secret of the Fur' in Club Penguin.
Since i don't want to make this answer too long, just go to Youtube and type Club Penguin Mission Secret of the Fur. Or go to a Club Penguin Cheats site, like club Penguin Gang.
by the dock
are you reffering to the mission called the secret of the fur? if you are then the jet pack fuel is at the lighthouse beacon
secret of the fur
the anwer is 23.
The Trainer
YouTube! Walkthrough
just try
Click your spy phone in the corner of the screen while playing 'The Secret of the Fur' in Club Penguin. Click Tools. Then when the comb appears, click on the comb.
The coffee shop.
It is on the boat in the lighthouse