Tweets, and Jerry, to me "Fizz" tasted like flavored Alka Seltzer!

Then there were the products that didn't do so hot the first time around but became quite popular when revived and redesigned a decade or two later. The skateboard is one example. (The other one slipped my mind. Stayed up nearly all night to watch the Perseid meteors and just finished a brew, so I'm off to dreamland.)

Oh, I just remembered the other one -- self-tanning lotions. The ones introduced ca. 1960 made you turn orange and smell really funny and didn't wash off evenly.

As for things that never really caught on, how about 3-D movies (with the funny glasses)?

Genie