At the New Years party I went to this year, a fun prank was made by putting out canned catfood in a tub with crackers for dipping, complete with a sprig of parsley. ("pate")
Also dry catfood mixed with trail mix.
Drunk people are fun.
The plan backfired slightly though: the downstairs toilet pretty much blew up.
Now before anyone lectures me on the risks of salmonella or whatever poisoning, I say to you: shut the hell up.