Okay these are just some sample shots, they are not meant to be complete. I really haven't had time to work on these at all but hopefully I'll have some new things to show soon. You should also probably check out Andreas Dilgers combination of the penguin and the logo that seemed to be doing best from the Linux logo competition. Andreas has done some really excellent work.
A new vote is taking place at Ballot.box.com.
This logo was created from my penguin and Matt Ericson's Linux 2.0 text. Matt has done a couple of integrated logos himself now, You should definitely check them out at Matt's linux-logo page