Place to find Windows 7 Start Orbs / Buttons:
DeviantArt (narrow search to just “orb“)
Windows Seven Forums (see the “sticky” posts)
Awesome guide on how to make a start orb / button using Photoshop on YouTube: How to make start button for Windows 7
StartOrbz is a program for creating and applying start orbs. I have not used it.
I use Windows 7 Start Button Changer to change my start orb.
( See here for how to use it: http://kishan-bagaria.deviantart.com/art/Win-7-Start-Button-Changer-1-0-153001999 )
My attempt at making a start orb (no after effects (click), just hover)
It should be noted that all my desktops / taskbars are dark (black / grey) so I’ve no idea how they look on other colors:
Black Orb w/lightning (I used the Black Start Orb form here)
.
Metallica Ninja Star Start Orb ( I used the star from here)
Anyone is welcome to use them, just right-click > save as. (Please use proper credit if posting them)
If you make one and want to pass it along post it here.
I would appreciate any good links on this subject.