Are you feeling like you've missed the boat on the whole advent calendar thing this year? You (understandably) don't want to pony up to buy one at this point, and you're not feeling that crafty urge to make one? Then how about this nifty little free number from Mibo Studio? All you have to do is download, print, and assemble in just a few minutes.With this calendar (available for download here), each day's gift is a lovely little graphic hiding behind each flap. If you want to customize your calendar further, you could write an activity or sentiment on each graphic before assembling the calendar.