You got liquid nitrogen?? What the hell do they use it for? Anyway, the venerated Anarchist Cookbook has got some fun stuff with liquid nitrogen. Don't know if it works. Get a bunch of cans of shaving cream. Find someone's car that you can get into. Dip the shaving cream in the liquid nitrogen (With tongs!!) and peel the metal off with another set of tongs. Put as many of these as you can in his car. Get one in his glove box, trunk, under the hood...When the shit thaws, his car will be filled with it.

Try and get some asshole to put his hand in it.

They use it for burning warts off. And in some chemlab stuff. My prof made icecream for the whole class with a big tub of milk,sugar,vannila and a dewar filled with LN. It costa about a dollar a liter, but you need a dewar to carry it.

when i was out there they used it to burn off warts and freeze bull semon. we put some in a 600ml coke bottle and put the cap on. the guy didnt seem to mind the stuff dripping on his skin. it didnt touch it just kind of boild off. he threw the bottle wichch just kinda lofted a few meters then we sat and watched. the bottle puffed up and started bending but it diddnt explode. so i used a .22 and it exploded really loud. it banged around the hills a few times. we did that a few times. strangely i didnt see to many rabbits that day.