LXR is quite mature now and deserves a decent logo (and maybe also a decent name in lieu its acronym).
There have not been many attempts to create art for LXR. This page shows them.
This one is due to mbox. He designed it in 2009 when launching discussion about the logo.
This is a quick and dirty attempt when ajlittoz needed a logo for the 2011 LXR web site. Only half an hour work!
Neither Malcolm nor I (ajlittoz) are graphic artists. Consequently, you are welcome to try and design a neat logo. Subscribe to the lxr-general mailing list and follow the discussion named LXR needs your help.
No answer since it was launched on April 1, 2009! I know, it was April Fool's day. But LXR really needs a logo.
And also what about a new name?
We could elaborate on the three historical letters. Here is a proposal eLiXiR. Comment on the mailing-list.