This is one of my favorite lists (#2) for keeping nearby when running a game of All Flesh Must Be Eaten or a good game of Slasher.
Rather than having to worry about tiny mundane objects and where they are placed, I simply wait until they are in the right spot and take a couple of rolls on this list.
A package of snack cakes, a quart of motor oil and a couple of bottles of hand sanitizer give you what?...that is the puzzle you want to hand to your player characters.
It is especially fun in Apocalypse oriented games.
[5 of 5 Stars!]