Smell-o-scope 

A telescope for your sense of smell, created by Hubert farnsworth it was the reason that mankind noticed a giant ball of 21st century trash flying towards earth, saving it from definite destruction.
May only exist in 31st century futurama

What happens if you use the smell-o-scope to smell Uranus- Fry

Smell-o-scope by Washy February 18, 2015

Smelloscope 

a telescope used for smelling instead of site.

Man, I stuck my nose on the smelloscope and smelled some nasty shit!

Smelloscope by Professor Hubert J. Farnsworth September 6, 2005