first i would boil water in a sauce pan or something bigger depending on how strong you want the blotters
while you are boil the water get a sheet of thick paper or something maybe construction paper would work well.
line the paper with the lid of the sauce pan so it wont fall and will be exposed to the steam.
then the fun part throw in the green and as soon as u do that put the cover on and boil at a medium to low boil.
cook for a very long time i would do it for a few hours to make sure that all the thc is absorbed into the paper.
there u have it THC blotters and some canna-tea.
things that probably will go wrong.
it wont work/ it will work
papper will wrinkle and fall into water/ tape paper taught all the way around using a heat resistant tape.
i dont know much about this kind of stuff it was just and idea i had do you think it might work?