Gauging by the graphic that appears here for Clock O rama, I believe it's the same version I ordered within the past year. The ad is kinda cheesy, and, so were the cards. Whenever a deck of cards comes in a simple, white box, I know it's gonna be bad-but-I'm after secrets here.
This current version of the clock classic, is s step beyond a 1960's set of instructions I found in a magic estate sale bin. The newer effect uses bridge sized cards, with every card having a different back design BUT the prediction and selected card. Old as the principal is, it still destroys people, and I say this from experience. What's unfortunate, is that the cards here-like similar decks produced in India, are just about the cheapest stock, with possibly the lamest, most outrageous bizarre images on the backs.
Surely, SOMEONE makes a classier rainbow deck that doesn't cost a fortune! Wait-I think Rudy Hunter does. Clock o rama to me is not worth your $6.75. The trick is findable in card books, and unless you LIKE cheap rainbow cards, you will do better making your own deck, or buying Rudy Hunter's deck-which is actually a deck used for Frank Garcia's Rainbow cards.
These at least don't look like retro 70's junk. The only good thing I can say about this deck, is that it brought back fond memories of playing go-fish with my cousin back in the early seventies, with badly designed playing cards like these, all to the sound of the Carpenters playing in the background. And, I actually liked the Carpenters.
I just wish I didn't have to think of garish playing card designs whenever I happen to hear them.
Learn the secret, skip this deck.
A prediction is made then a clock circle is formed out of cards by a spectator. One card at a certain time is remembered. This time is announced. The card chosen matches the prediction! Not only the face but also the back because all of the other 51 cards have different backs!