NOTE: I've left the legacy versions kicking around, in case anyone needs them (.src + graphic), but most folk will only need the .xml files, which have the icons built-in.
I had to do my own image for Google define, a good icon increases productivity, simple as that. And this UNIX man page plug is oh-so-handy. Of course, you need a Linux server handy to make use of it.
And as for the Froogle UK icon, I CANNOT BELIEVE the search plugin creators missed the opportunity to do something like this. Feel free to replace their generic trash with this cute version!
And also Spamhaus, because some bastard spammer shares the same ISP as me, and occasionally, when I reconnect my DSL, I get their IP. This creates all sorts of troubles when I try to send mail via corz.org's rather secure SMTP. So when I reconnect, I check the IP; if it's tainted, I reconnect.
Actually, the best way around that particular problem, is to use an IDENT server (identd) on your gateway, like my fakeidentd for IPCop. Handy for connecting to IRC, too.