There's this thing called google nose and you can supposedly smell through your iPod or smartphone. Just google google on your iPod and along that top bar where you can choose web, pics, videos etc., one of the options is nose. Then you get smells to choose from. Choose a smell that you can fake like for example, hairspray; take hairspray and spray on your phone. Then have them smell it. It should work, if they're idiots.