Ashley created an excellent assortment of PNG Class::DBI logos. A compressed archive of all of the logos is available for download. Tony liked the logo and gave the go-ahead for them to be distributed.
There are many to choose from, including some standard sizes like these:
50 x 50 small logo: http://sedition.com/perl/cdbi/cdbi-50x50.png
80 x 15 mini-banner: http://sedition.com/perl/cdbi/cdbi-gear-80x15.png
88 x 31 "Powered by Class::DBI" banner: http://sedition.com/perl/cdbi/cdbi-powered-88x31.png
Enjoy! And please let Ashley know if you use any. It would be great to see them in the wild! Any change/customization requests will be honored as time allows.