Count down to the holidays, Play-Doh style! Does Door 5 hide a snowflake stamper Is there a tree mold behind Door 1 You'll have to find out what's hiding in the Advent Calendar. With a different surprise gift for each day leading up to the holiday, there's no knowing what festive creations you'll be able to shape for the season -- and beyond! Play-Doh and all related properties are trademarks of Hasbro.