Simply use 2 pig/boar pets then use forage > change pet > forage > change pet etc.
A variety of items will show up but you want Elixer of Heroes (3 second invulnerability).
The really strange part is all other items decay after a short time.
I have sat around as long as 15 minutes and the elixers were still there.
There is no cooldown on the elixer and you can keep using them over and over.
Enjoy
From leethax @ taultunleashed.com