Blobber 2.1 (Mac)
Source: Baxter Computer Systems
Blobber is the premiere Wait Cursor changing tool for MacOS X. It allows you to change the Wait Cursor (Spinning Pinwheel) in MacOS X Jaguar to one of many alternatives. Blobber also now supports plugins so you can download additional Blobs, supports changing the mouse pointer, and a tutorial to tell you how to make your own cursor replacements.