Extremely simple logo.
Here's a prototype I made in 2 secs in Paint:
Obviously it needs to be smooth, symmetrical, etc.
A subtle floor-shadow, with the font as anything you'd like that seems appropriate.
Must be: Transparent .PNG
After a day or two, whenever I find the logo I like, post your LTC address with the image, and I'll send it to you in a few minutes (if I'm online)