swilow
Bluelight Crew
Besides making your head fall off, mescaline is pretty much a-ok 

all experiences very humbling.
If you have trouble getting the tea down, try pouring it into an icecube tray and freezing it, then breaking the cubes up a little and swallowing them like pills then when its all down drink something hot.
A bunch of 00 capsules seem like they would work well for dried cactus... Just pulverizing and capping up 25-30 or so...
I dont think that would be possible with Mescaline. A person would have to be very unstable to have a bad experience with it.