The Stay Puft weed strain is a Compound Genetics cross of The Stay Puft weed strain is a Compound Genetics cross of Marshmallow OG and Grape Gasoline. It can have a candy sweet, vanilla, marshmallow smell and flavor. Some have reported notes of diesel, grapes, and honey. Stay Puft cannabis can have very high THC hybrid effects, including strong body relaxation and sparks of creativity.