PhotoAdvent for Mac

From InstantWorld Software:

PhotoAdvent is a Christmas Advent Calendar for your computer. It comes with 25 built in pictures, and allows you to personalize the calendar by importing your own pictures. It's a fun Christmas activity for everyone, and ideal for families with young children.The program opens on a snow scene with 25 numbered boxes - you click on the dates in order to expand them and then click and drag your mouse to gradually reveal the pictures hidden behind the dates. When left idle, it will start to snow in the main PhotoAdvent window, or in a date square, if one is open. If it is snowing in a date square, a small "scene" will gradually appear out of the snow.Beginning with PhotoAdvent 2.0, users can import their own pictures. You can either import pictures directly from an Import folder, or use the "Edit Imports" option to browse your hard drive (or other disks) to preview and import pictures individually. The pictures you import will then be used in place of the built-in pictures.