Made this icon on year ago (2013-03-08) as I got bored for the glass in KDE icon.
If you want to take it in use in Kicker:
1. Save the PNG file to custom location (can be example ~/.kde4) from where you find it and where it stay save.
2. Right click kickoff -> Application Launcher Settings and click the icon.
3. Browse to directory where you saved the PNG file and apply.