Need some help with a magic trick

[Joshua Robinson]

Hey guys and girls!

There is a magic trick out there where there is a break between the cards and you can see the changing happening (check this video: http://www.youtube.com/watch?v=JwX2zYOlwAU&feature=related (time: 0:21)) but instead of the deck, you are using your hand.

I have a phone which came with a black back and a white back (check picture below) I was wondering if anyone could help me make a colour change with the two backs where you can walk up to someone and go "check this out, (pulls out phone with black back on it), with a wave of my hand I can change it to white" (waves hand stops half way to show one half is the original black and the other is white, couple waves back and forth moving the colour change up and down the phone) and one swift motion it changes the phone back to white. you then can take the white back off and hand it out for inspection with the original black back in sight.

I think making this trick would be a mindblowing trick for anyone who sees it and even more mindblowing if someone could help me make it up. I do not want to destroy either back, because  I change between them quite regularly. Is this possible without making a gimmick with the backs and without colouring one or the other backs?

please tell me if it sounds plausible and you are happy to help (really would like more intermediate - expert magicians helping with this!) Thanks!

EDIT:: Sorry if this is in the wrong Area! It is to Design a trick, but it could belong somewhere else, please move accordingly

[Don Boyer]

I get the feeling that any attempt at this trick would involve creating a gaff that would destroy the backs or employing some seriously good sleight of hand.

[Joshua Robinson]

Okay... I just would like an expert magician to see this and talk to me about it. I think it would be an awesome trick to do and I'd love to perform it one day.

[Don Boyer]

Okay... I just would like an expert magician to see this and talk to me about it. I think it would be an awesome trick to do and I'd love to perform it one day.

Actually, one of the best way to get away with this stunt would be using one made of thermally-sensitive plastic that changes color when exposed to heat (like body heat).

[John B.]

i was thinking of what don suggested.

[NathanCanadas]

Not sure how well this would work, but if the back comes off easily, you can palm the white one, and switch the black one for the white one with "a wave of the hand". Or if you want to gimmick you phone, you could just put a black back on the back of the phone, and put a white one on the top of the phone, and while you are waving your hand, do a Murphy deck flip, and reveal the other colored back. or start with the white "back" which is on the face, do the deck flip to reveal the real back (black), and then palm off the white one and the setup on the face.

[Don Boyer]

Not sure how well this would work, but if the back comes off easily, you can palm the white one, and switch the black one for the white one with "a wave of the hand". Or if you want to gimmick you phone, you could just put a black back on the back of the phone, and put a white one on the top of the phone, and while you are waving your hand, do a Murphy deck flip, and reveal the other colored back. or start with the white "back" which is on the face, do the deck flip to reveal the real back (black), and then palm off the white one and the setup on the face.

If you want to flip a smartphone around in the air, more power to ya, but the back swap would be close to guaranteed to give off noises that would reveal your method.  Flipping the phone and an extra back isn't quite like a deck flip, either - decks have cards of pretty much the same weight with the same center of gravity, while your phone and the spare back won't even be close.

You MIGHT make it work if you used something like blue-tack putty or magician's wax to hold the two items together, but there's still no guarantee that there wouldn't be some clicking from the phone and spare making contact.  And your hand has to be large enough to conceal the back when removing it for the palm -away