Does anyone recognize these? I recently acquired some cards that I assume were used for a revelation card effect. Two cards and a plastic credit card size item that lets you see the name of a card on the jokers.

http://www.dazustudios.com/images/2hrts1.jpg
http://www.dazustudios.com/images/2hrts2.jpg
http://www.dazustudios.com/images/2gimmick.jpg

I don't know if this was custom made or if is a packet effect of some kind. If anyone recognizes it, I would appreciate the help.

Might be Crystal Card. check the demo here http://www.moremagictricks.co.uk/shopexd.asp?id=52532

Thank you Phil J.! That is definitely it. It's interesting that the video demo in the link you shared has a quote from Tommy Wonder. The cards I have came from the Tommy Wonder estate (ebay auction). They must be cards they sent him fishing for a quote/endorsement. I'm not really a card person, so I really appreciate your help!