What type of adhesive should i use to hang up posters in public with no damage to property?

I want to do some info warfare on my campus but i don't want to get in trouble with the school for vandalism. I need something that is quick (unlike tape that you have to pull off and mess with). I know there are some spray adhesives, are there any that are not permanent?What type of adhesive should i use to hang up posters in public with no damage to property?
Theres some 3M stuff,(like heavy duty post-its to use for hanging pictures or posters) they sell at big hardware stores. I forget the name, thats not supposed to damage surfaces, and supposed to be removable.


Any spray adhesives use solvents and glues, and you would have to use some hard core varnish remover, or something that could damage surfaces to remove it, if you got caught. Using tape would be better than that. There are things like rubber cement that peel off smooth hard surfaces, but it does'nt stick that well and takes a bit of time to set up.What type of adhesive should i use to hang up posters in public with no damage to property?
well, masking tape is always a good standard for these things because it is gentle on surfaces. Especially the blue or purple kind. I feel that this would be easier to remove than other kinds of sticky tack because some sticky tack will make marks on some surfaces.
you can use the poster putty. its like clay comes in a package at walmart in school supplies or craft isles for like $1. it holds pretty good and never hardens so when your done it justs peels off, its also reusable.
Blue tac.