About: i am a file engineer, writer, machine and chemist wannabe. In addition to pop-up cards ns design and build furniture, lights, costumes or every little thing I take place to require at the time. Lipstick, a mixing studio, all-pur… more About belsey »


You are watching: How to make a whoopee cushion

A standard of harmless pranks appealing to young and also old alike, the whoopee cushion, through its loud, realistic fart sounds, has actually just one thing missing:Smell.While my seven year old boy fantasized around extremely unsanitary methods to remedy this noticeable failing, ns couldn"t store my very own mind from spinning. I stood up to the temptation to experiment it rotates now, but the allure that this contest and also Think geezer was just too an excellent for me.I existing here, the smelly whoopee cushion!


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Approximately 12" of functional tubingGlass jar through lidsilicone glue (optional -- i didn"t require it)Small clamps (from office supply store)********* 1/3 cup ammonia1/2 box of matches*********Whoopee cushion


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Cut the tubing to gain one 2" piece and also one around 10"Drill two holes in the lid of her jars so the the piece of flexible tubing right snuggly.Seal the tubing come the lid with silicone if essential to get an airtight fit.


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With a strong pair that scissors, cut the top off fifty percent the matches in a box, put them in your jar and cover them with the ammonia. Near the jar v your modification lid, and also use small clamps to seal the 2 pieces that tubing.Let sit because that one week.The sulphur in the complement heads reaction to the ammonia and also produces ammonium sulfide, a chemical with the odor of rotten eggs.




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Insert the much longer tube into the whoopee cushion and also seal the rim with your fingers while you blow (or pump air) into the much shorter tube. This will blow up the whoopee cushion with "fragrant" air, and also you have the right to now proceed to strategically ar the cushion because that maximum ashamed effect.DISCLAIMER: the complement heads and ammonia are an alleged to sit because that a week... To do the challenge deadline ns only had time to to let that macerate because that a couple days. In ~ this suggest the resulting odor is still closer come ammonia 보다 rotten eggs so the experiment is not totally successful -- yet. I"ll report earlier with full results in a few days. If that doesn"t work other concoctions deserve to be provided with the same simple set-up.CAUTION: don"t blow this air in any person or pets direction. That stings. Simply thinking around what would happen if you suck the air in rather than punch it out provides me cynical to post this instructable.