An old intern found this disgusting dead rat on the yard next to our office. We weren't sure what to do with it, so we kept it in a bag outside our backdoor for a few weeks. But after the big amount of reader input on the gross jar 2.0 we decided the only responsible thing was to put it in a jar, pour milk on it, wait and watch the fucker putrefy.
We can't show our office landlords that we're doing anything disgusting, so the creation of the rat jar had to take place in the basement, not outside, which made getting the wet, aging rat corps out of the bag and into the jar even worse. The old intern who was made to do it dry heaved spontaneously every now and then for the rest of the day. "I kept having these involuntary fantasies about feeling the wet rat fur against my skin, or accidentally getting the rat in my mouth."
Apart from the rat we added:
1 pint of milk
2 broken eggs
1 whole egg
1 picture of U2, to bring some colour to it and because they're gross.
You can follow the rat jar on www.viceland.se, and you'll also be able to suggest and vote for stuff to put in it. Next up is a choice between barf and human surgical waste. We keep it on the roof because the office people already want to kick us out.