Creating an air orb can help you earn more RS gold and magic experience
Creating an Air Orb is an easy way for Runescape players to gain more RS gold by charging the Unpowered Orb into the Air Obelisk. An Unpowered Orb is items which can turn into an enhanced orb by using a certain Obelisk.

A guide to turn unpowered orb into air orb and sell it for RS gold
In this guide we will be using Air orb to earn as much RS gold as we want within the day. Before we proceed, you need to gather necessary materials to create an Air orb. First we need to have unpowered orb and cosmic runes. Buy as much as you can. Second you need to have Air staff to create Air orb.
Equip the Air staff and then proceed to the area where Air Obelisk is found. Go down the trap door in the Edgeville (near with the yews and coffins). Go north, just past along the skeletons until you found the door. Run north-west and climb the ladder north where you will found Black Demons. On that area, you will found the Air Obelisk. Walk towards it and cast “Charge Air Orb” on it. Now the entire unpowered orb is now turned into Air Orb. Once you are finished, you can teleport back to the Edgeville. Deposit all the Air orbs into the bank. You can repeat the process until your storage is full or until you’re satisfied. Sell the entire Air orb into the Grand Exchange.
This kind of method can earn you approximately 200-400k RS gold per hour. Good luck on earning RS gold.