You will need to install a user script manager extension to install this script.
This script is my attempt to get rid of google doodles on Google search homepage.
Starting with version 0.7, the small doodle on the result pages is also removed (as well as the background image in the top bar).
If you have any doodle still appearing anywhere, please post the url immediately. I need the regional domain to test in the same conditions as you. And I have less than 24 hours to test.
For more userscripts, styles, extensions, tips, ..., visit my programming page.