Fluffy Puff Marshmallows
From Homestar Runner Wiki
Fluffy Puff Marshmallows is a brand of marshmallows that Homestar Runner once did a commercial for. Their mascot is now Marshie. The logo is "Made from the best stuff", which may be refering to Snapple's logo "Made from the best stuff on Earth!"
Their product line also (made from Galoob) includes Fluffy Puff Mayonnaise and Halloween looking Malloweens. Fluffy Puff Marshmallows are Homestar's favorite food; however, since he was dropped as the spokesperson, he hates Marshie.
The 1936 version of Fluffy Puff Marshmallows is Fluffy Puff Air Puffed Sugar Delights, and the spokeperson, the 1936 version of Marshie, is Mr. Shmallow.