Hello
I recently found out that you can earn a little extra from your Icy Prism Icy Prism - Item - World of Warcraft
Inside the Icy Prism you can get a few blue gems and sometimes also a Dragon's Eye which sells really great
So here is the trick:
1. Make yourself a Icy Prism
2. Open it (Without Auto-loot) and take out the gems there is most worth
3. Close it with 1 gem left - The Icy Prism will stay in your bag and will NOT be soulbound
4. Write in trade channel "WTS [Icy Prism] (amount of gold)! Contains random blue gems and sometimes a [Dragon's Eye]!
People will think :"This could be a good effort" and then they will buy it. Then it will only contain a cheap blue gem that only sells for like 5g
There you just earned 50-100g extra
Good Luck!