3D Pumpkin Patch Teddy Bears
You can elect to play your own MP3 files; change the number, color, and size of the falling leaves; change the background colors; and select the time of day.
The three-day demo program did not display nag screens in my tests. The full version costs $10, or you can buy it in a pack of four child-friendly Halloween screen savers for $24. Note: The vendor says that all of its screen savers are Windows Vista-compatible, but I tested 3D Pumpkin Patch Teddy Bears in XP only.
This family friendly screen saver will delight young children, but may drive teenagers and childless adults to distraction.