Free images results:

Smell pictures, stock photos and images


Bird Royalty Free Stock Photo
Author: Pilarin
The bee Stock Photo
Author: Catcha
Curious Royalty Free Stock Photos
Author: Cinc212
Curious 2 Royalty Free Stock Photography
Author: Cinc212

Also, here are some commercial RF-licensed images that match your search criteria:  
Smell Stock Photos
Author: Dusanzidar