db cooper cigarettes dna DNA Test Negative for D.B. Cooper Suspect; a New Sketch Emerges D.B. Cooper Hijacking — FBI
Description
Contamination of food sources: When cigarette litter finds its way into our water systems, its likely that it ends up in fish, vegetation, and animals and contaminates them with toxic chemicals

Its not just about improving the aesthetic
Should work though

This can increase your chances of quitting for good