From wowhead:
In my quest to make a Green Lens of Stamina, I started keeping track after the first hundred lenses yielded no straight Stamina variant. Here's what I got (listed in order of when they first appeared for me).
Intellect: 405
Spirit: 61
Whale: 6
Striking: 1
Restoration: 2
Arcane Resistance: 3
Fire Resistance: 2
Frost Resistance: 2
Wolf: 5
Tiger: 13
Falcon: 4
Blocking: 1
Gorilla: 5
Boar: 4
Eagle: 7
Monkey: 2
Owl: 4
Bear: 4
Sorcery: 2
Eluding: 1
Strength: 1
Power: 1
So basically, in MoP we could make the Green Lens of Intellect, the Green Lens of Spirit, or about a 10% chance at the Green Lens of Anything Else. I just got really unlucky with no stam lens.