Let’s see, Red Apple, Nails and Laramie cigarettes among many others. The latter of course leads to a whole world: Duff and Fudd beers, Squishees, Canyonero, Buzz Cola (which has actually been made), Mr. Sparkle, etc.
Until now, I was the only person I knew that was familiar with Mr Blandings and his Dream House.
Malk. Now with Vitamin R!
Bicker, bicker, bicker.
I was among the high school girls in the mid-eighties who were horrified to discover that we had been duped into buying “Sasson” jeans. They were still the best fit for me though, and I continued buying them - really appreciated the post-denouement price break! 
I find the name “Sorny” really hilarious, possibly because it sounds like the French word “sornettes”, which means, basically, “bullshit”. (And yes, I’m aware that it’s a take on Sony.)
I used to invent brand names and logos just for the fun of it.
Trademarks for a never-completed 1930s novel I once started include Carillon Coffee (“the right note in every cup”), Old Estonian Lager Beer, Cascadia House (a publishing and radio power in the northwest), the White-Knight Bicycle Company, Don Cesar Cigars (makers of the acclaimed “Alcalde”), Fleur de Liis (a feminine hygiene product invented by the heroine, who was named Liis, from the Estonian brewery family), Myers Koolite (an experimental television tube), and Manalive! (But It’s Good), a 5c peanut butter pie confection.
Well, I used to think that Powdermilk Biscuits from “A Prairie Home Companion” were real for years.
I mean, they sounded so good, right? Like they were so buttery and greasy they’d leave a stain on the bag!
And then there’s the HiPhone, and the SciPhone.
Aren’t Laramie cigarettes real? I swear I’ve seen old ads for them somewhere.
OK. They’re not real anymore, but they did exist at one time.
http://en.wikipedia.org/wiki/Laramie_(cigarette)
What don’t I know that I should know because I knew that instead?