This is entirely about Truegold and it's cooldown.
The following prices come directly from my server, which has an average economy.
Truegold reagents:
3 Pyrium Bar = 60g, 20g each
10 Volatile Air = 240g, 24g each
10 Volatile Fire = 190g, 19g each
10 Volatile Water = 170g, 17g each.
Total cost: 660g (average)
Now, find an Alchemist with Transmutation Mastery. Have them xmute the truegold, tip 100g.
No proc? Advertise in /trade: "Selling truegold cd 100g" (or more, for that matter) All you have to do is get traded the reagents for the truegold, and then trade back the original truegold and receive your tip.
Search once again for another transmutation master, buy the cd...
No proc? Repeat.
Proc? Profit!
Nothing big, just a nice concept I've been using.