Rogue - Coins of Air Not Dropping

If like me you popped onto your Rogue, who you haven't played for a while, and noticed you had a quest to collect 10,000 coins of air, proceeded to pick pocket loads of mobs and get 0 coins of air; then you may be confused.

I was.

The quest text didn't help and even wowhead wasn't that great.

I eventauly found out that you need to have in your bags (the bank just won't do) Shining Lamp of Alabas.

Oh, and don't have two apparently, having two stops the coins dropping too.