There
are some good manipulation card out there.
As Kati said, Jeff uses Bee cards, they are very easy to come by, and they are the no edge ones, not the security edge found in casinos (they fade out to white at the edges.)
Also buy red, when the hand is in motion, the cards can be sticking out, and blend in with the colur of your hand (unless you are green

)
Jeff shows you how to prepare the cards too, with fanning powder, and with a wooden ruler and a card clamp. I prefer preparing the cards myself rather than buying manipulation cards, as it saves money, and last ages.
Fanning powder is not odourless talcum powder, try talcum powder and see what happens. Fanning powder contains zinc, and it absorbs the moisture in the cards a lot better than talc, and the fine particles left stick to the cards making them moves against each other easier (like egyptians rolling blocks on logs

if you get my drift

) The best way
is to do it with a bag, but in the hand with a Faro shuffle if you need a quick fix.
Art of card manipulation is a fantastic series, but needs dedicated practise to pull most of them off.
Mark