I tried this on eBay but it was unfortunately removed…
Go for it. Just make sure you allow plenty for shipping charges.
You have some competition:
https://www.fiverr.com/eleven2three/send-someone-a-bottled-fart?context=advanced_search&context_type=auto&funnel=201502101935112938141200&pos=1
I guess I’ll have to send it in a zip lock so I can be different 
could be really a KILLER ,i meant idea
Why not, if Fiverr lets you sell your “service” then go for it.
could be an untapped niche…
great gift idea for that ‘hard-to-buy-for’ person on your Christmas list…
My farts are now available for purchase folks!
Will it be a generic fart or will you include different kinds of aromas? (I’m thinking of a cheese labeling system)
This way you will be able to personalize for each customer.
Reply to @foolkiller187: Get rid of the “smell” direction. Never hint at the punchline in a prank! Good luck, farty pants!