Cookie presses work by pushing a small amount of dough through perforated plates directly onto the baking sheet, somewhat like a caulking gun. A ratchet-like press system means that the same amount of dough is used each time and the cookies are uniformly shaped.
Most presses come with several different interchangeable plates, so you to make cookies shaped like wreaths, snowflakes, trees, flowers, and more. Some of the newer presses even have pastry tips for decorating the cookies after baking.
It can take a bit of hunting to find a good cookie press, though many kitchen supply stores will carry them in the weeks leading up to Christmas. Here are a few places where you can find them online:
Do you own a cookie press? How often do you make spritz cookies?
Related: Kuhn Rikon Squeezable Decorating Kit
(Image: Sur la Table)