This is a tutorial I found at: http://www.stencilrevolution.com/forum/index.php?showtopic=8536
This is for fly posting (The act or activity of illegally putting up poster, posters, especially for advertisement, in unauthorized areas. -allwords.com) and I find it very effective.
Here you go:
..so for all the people who have trouble cooking the paste, here's a little tut..
HOW TO COOK IT
* hot plate and a little pot
* beater (or fork)
* flour (white, preferably)
..so here's how to do it:
:: take 3 tablespoons of flour
:: add cold water and stir, until it's a runny mix
:: put one cup of water in your pot, heat it until it's almost boiling.
:: put the cold wheat-water-mix in it slowly while stirring constantly with the beater/fork. (leave the pot on the hot plate while doing this)
::bring to boil (just for a minute or so)
:: keep stirring!!
if you want, you can add a tablespoon of (white) sugar while it's still hot, for extra strenght.
bon appetit !
HOW TO USE IT
paste is applied (both to surface and backside of your poster) with a thick brush (the bigger the poster, the bigger the brush), from the center to the edges.
use regular paper you'd use in your printer, or any paper / stuff that is able to kinda absorb the paste a bit.
take care to eliminate air bubbles under the poster by striking from the center to the edge, and make sure there's enough paste at the edges / corners.
have fun !