Move the mouse around and watch results
This one is the orignal that 'Butterfly Slide' was made from. This particular code is the most common one out there for Mouse Cursor Trailers. You can find it with many different images. I have seen sites with pages of icons or images that can be added to this same code.
This is a cross browser cursor trailer. Script written by Brian Caputo (email@example.com). I found it at Dynamic Drive (http://www.dynamicdrive.com/).
The code for this one is all in the < Body >, after the < Table >.
Instructions on how to get the code for Trailers
Getting the Code