12 Days of holiday downloads, Day 2: Mac
Since X-MasTree began life as a tribute to the grandaddy (or is that grandma?) of all Mac Christmas trees, YourHead software's Christi's Tree, I think it's only fair to talk about them together, especially since John's X-MasTree page is the current repository for Christi's tree, too. Christi's Tree isn't as big on the lights as X-MasTree, but it's still shiny and comes with a classic Mac look and configurable garland.
Both programs can be configured as Christmas count-down clocks, just in case you've forgotten how long it is until the big day.
Previous 12 Days of holidays downloads for OS X: