Harry Potter Impossible Bottle
It doesn't get any more magical than this...
Unfortunately there is no incantation to instantly put a deck of cards in a bottle. But that didn't stop me using this spellbinding Harry Potter deck by Theory11. Available in blue, green, red and yellow (for each Hogwarts house).
The deck of playing cards contains all 52 cards in order, as well as both jokers. It is perfectly sealed in its cellophane/plastic wrapping. There is a small 'window' cut into the side of the box which clearly shows the playing cards inside.
The bottle is a completely normal glass bottle like any you would buy. It has not been sawn, cut, melted or altered in any way. Everything you see inside the glass bottle has been meticulously placed there by hand.