The guide recommends having the ability to drop combat. If you can't, it'll just take longer. The strat seems similar to the strat for the Qiraji mounts except with the added complication of needing to use an item before zoning out.
Read the entire strat before ringing the gong or you'll die. Ohmygoodness, that first swarm is brutal.
I found it a lot easier than expected on Dusty once I figured out where everything was. Yes, I had to run out every time, but the level 70 elites miss you a lot and my shield was good enough to keep me safe while using a hex stick on a frog -- even with a mob on me.
Wait, where is all this stuff? O.O
Nearest frogs are here. You use the hex sticks on them before leaving the instance or the sticks disappear.
The two suggested patrols are here. They're close enough to the entrance to run out and close enough to the frogs to use the sticks quickly.
How long will this take?
Amani Hex Sticks have an average drop rate of about 37.74%, and the chance of getting a Mojo is about 2%. By combining the Mojo drop rate with the stick drop rate, on average you will need to farm about 133 mobs.^ Quote from the guide.
I got about 20 sticks an hour using this method, and spent a total of about 3 hours farming them before I finally got Mojo.
I got mine in about 3-4 hours, if you cut out all the distractions I had and count only time spent farming.