For a sticky note app that really pops, try Stickies for Windows.
This simple, free, open source program lets you customize your
notes to your heart’s content, and stick them anywhere on your
desktop.
Note: Please see the author’s site and read the license before installing this software. This program is donationware. It is free to try, but the author accepts and encourages donations towards further development.
–Robert Strohmeyer