Things You'll Need
2 cups pet food kibble
1 tbsp. cocoa powder
1 cup flour
1 cup grass clippings
1 cup hot water
1 cup white craft glue
Large mixing bowl
"Cow chips" is a humorous name given to the dried, disc-shaped formations of cow dung that sometimes form in fields where bovine are grazing. Cow chips in unexpected places is rarely a welcome surprise; this creates ample opportunity for practical jokes if you can make your own fake cow chips and place them wherever you like. Create your own chips from materials that won't smell bad or gross out anyone who's in the know, but which are sure to give your "victim" an unpleasant surprise!
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Place the pet food kibble -- made for cats or dogs -- in the food processor along with the cocoa powder and flour. Turn on the food processor; use a medium setting if your processor has different levels and run it until the kibble is ground into a coarse powder.
Add the grass clippings to the food processor. Hit the "pulse" button for a few seconds at a time to process the ingredients just until they are mixed.
Mix the glue into the hot water in a small mixing bowl. Stir with a fork until the glue is dissolved.
Add the glue and water solution a little at a time through the food processor's pour spout and pulse the food processor until the ingredients are mixed and you have a pasty mixture about the consistency of mashed potatoes. Use just enough of the solution to get to this point. The exact amount you will vary, depending on the properties of the grass.
Lay out a sheet of waxed paper about three feet long. Pour the mixture from the food processor into a mixing bowl.
Measure about 1/3 to 1/2 cup of the mixture. Drop this quantity onto the waxed paper from a height of about 12 inches. Measure a second quantity and drop this a couple inches away from the first one to make a second chip. Use slightly different amounts of mixture for each chip; after all, they won't all be consistent in nature.
Let the fake cow chips harden overnight, or until they're dry and hard. Remove them from the waxed paper using a pancake turner. If necessary, turn them over and let the undersides dry for a few hours after the tops have dried.