Scroogle SSL German search (lets you search with Google anonymously). The difference with the "Scroogle SSL search" add-on is that this one will return only results in German.
On a personal level, your support for Scroogle says that search engines should not be tracking you and retaining this information indefinitely. Not only does Google scrape much of the web, but they keep records of who searches for what. If information about your searching is accessible by cookie ID or by your IP address, it is subject to subpoena. This is a violation of your privacy. Someday Google's data retention practices will be regulated, because Google is too arrogant to do the right thing voluntarily. In the meantime, you should not be leaving your fingerprints in Google's databases.