You can download the all new version of Lion Menubar! It's now centered and contains retina graphics.
I hope you will enjoy it.

I don't know anything about logogarden.com or other logo building sites. I recommend you to be creative and create your own Logos. Think about what the company do and draw some of your Ideas on paper.

Sorry, but I don't think that this question isn't relevant to this Adium Xtra, so ask this in some other communities.