Pollen is not what gets you stoned - THC and various other cannabinoids are. The amount of THC in leaves and stems in very very low, but I guess this could be done if one was desperate enough and had hours upon hours to deal with the frustration........

And "Tea" - THC is not soluble in water, only in fats and oils. You would be better making some cannabis butter - sautee some butter and herb in frying pan and there you go!