Brighton Science Festival

Christmas Cards

Now on sale: our collection of unique Christmas Cards. With gravity-defying magic, optical illusions and psychological tricks, they’re guaranteed to stand out on the mantlepiece. And they are nothing more than folded card! So simple yet so magical.

Upside-Down “Merry Xmas” Card
Have a Merry Christmas, whichever way you look at it! A magical rotating card – whether you have it upside down or the right way up, the message still reads Merry Xmas. We’ll leave it to you to work out which side to write your greeting on. Click here to see it in action

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“Have a Rational Christmas” Card
How does Father Christmas get down the chimney? At the top he is indeed small enough to fit in the chimney pot, but he grows as he drops, and is full sized by the time he reaches the bottom. The famous Ponzi illusion repurposed for the Festive Season. (both Father Christmases are actually the same size).

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“Let’s Have a Precipitous Christmas” Card
A stunning gravity-defying Christmas card for those living in interesting times. By weighting one end of the card, Father Christmas and his reindeer appear to defy the laws of physics. This one will really stick out from the crowd!

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“Endangered Species” Card
A satirical card for the conservationist in you. Just like the polar bear, Father Christmas’s habitat is threatened by melting ice caps.

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“Words of Wisdom” Card 
An optical illusion Christmas Card showing just how much work our eyes and brain do when we read. We see ‘MERRY CHRISTMAS’ , but when we open the card, it’s MFBPX GIJBISJMAS

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“Happy Sad Happy Sad Happy Sad Happy Christmas” Card
A fantastic optical illusion Christmas card – fold the cover along the lines, and Father Christmas’s expression changes as you tilt the card. Will it be a happy or sad Christmas? You decide!

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See all these cards, or buy a multipack containing several cards, at Brighton Science Festival’s online shop.