One for the Diary (Blue) or (Red) by GRUM Handcrafted (GV$10)

Comes with a $10 gift voucher on your next purchase :) 
 
One for the Diary: The Working Magicians Pocket Diary Trick

The Effect:

Each and every day of the year has a card linked to it. A thought of special date is chosen by a spectator who finds a card assigned to it. This card corresponds to a card in a deck that is the only card in the entire pack that is a different color back and has the word "special day "written in permanent marker on the back!

Perfectly for strolling magic, table magic and even cabaret style magic and takes up very little room in your pockets too! It packs small but plays big!

Bicycle cards come in choice of blue or red back.

The beauty of this routine is that there is:
No memory work.
No card to force.
Quick and easy reset ready for your next performance.
Spectator easily describes the effect Touches them emotionally.
This is a real 'worker'!