This is a great trick, though you have to buy a couple of your own Bicycle decks to complete the
set. Since I needed a red deck and a blue deck, I found it convenient that they were sold in
packages of two (one red, one blue) at Target. However, within that set, the blue deck just has
text on the back, and the red deck shows the back of BOTH color cards. When I performed the trick
once using the red deck, someone said afterward "well, it's obviously a trick deck, the box clearly
shows that!", and they were right - the box makes it look like an undisguised store-bought trick -
totally unintentionally!! Picture here - http://dyz.com/otherstuff/reddeck.jpg Try to avoid
getting this particular box (or just don't show the back of the box... or switch it out with another
red deck you may have that doesn't involve a color change).