A couple nights ago at my parents' house I noticed something I hadn't noticed in the 12 years that I lived there. I happened to glance at the dishwasher, which had been there since the house was built, and the brand was "Lady Kenmore." That made me laugh. I don't think anyone would get away with a brand like that today. So I was thinking of some other brandnames that could be equally stereotypical.
Caucasian Saltines "The Cracker cracker"
Whitey Bread (great with mayo)
Rich Boy Tennis Rackets and Golf Clubs
This isn't turning out to be too funny or interesting so I'll quit now.