Oh, my goodness!!! I just watched the Tiddy Bear commercial and can't believe someone's making money on that thing. More power to them for finding an unfilled hole in the consumer market and having an idea to make money on people's naïveté and curiosity.
That may just be the worst product I've seen, although there is one that might be right up there in rank.
I picked up one of those Sham Wow packages and thought, "Wow, what a sham!" The thing wouldn't take the water off of my wife's car in any consistent, useful way no matter what I did. No dry paint or windows, just streaks all over the place which I had to remove with plain ol' paper towels.
I think a good question would be, "Which is the worst Infomercial"? Now that would be a tough call.
Be seeing you!