The Effect
A card is selected by a spectator. The magician also selects 3 other cards from the deck.
When the spectator reveals his card the magician show his 3 cards; these are all different from another. But then the magician waves his 3 cards over the selected card and they all become the same suit as the selected card. A super visual color change of 2 cards! Don't blink, or you will miss it!
Cost
€ 36.00 (£ 24.92)
Available at: (this is where I bought it)
http://www.vliegeruit.com/webshop/goochelen/artikelbeschrijvingen/INAIR.htm
Email address for shipment outside of The Netherlands:
arthur@vliegeruit.com
My Demo Video
I do not know if this trick is sold anywhere else (in the UK for example), but it is created by a belgian magician named Mickael Chatelain.
Maybe if you ask your local magic shop, they might be able to order this trick for you.
Difficulty
1= Easy to do
2= No sleights, but not so easy
Yes guys, it really is this simple. Maybe 1 sleight is used, if it even is a sleight

Review
This is an awesome effect. I really love it! I cannot believe how simple it is to perform this trick. Maybe it is a bit pricy because you only get a gimmicked card, but the effect is well worth the money.
Just check out the link to the video I made and see for yourself. It is an amazing effect, I just wish I came up with this idea.
There is no difficulty in performing this trick, however, it is not a free selection, so a card must be forced. This is the only sleight used in the whole process

Overall
9/10.
Yes, nothing is perfect

I thought the price was a little high, but as you can see, the effect and the gimmick are brilliant, so therefore I give this trick a 9 out of 10.