Here are some ideas I was able to come up with. I did not include any crates, so if that is something you are set on, let me know and I will submit some new logos. I felt that the crate me be too specific, and might limit where your logo could be used...but I would be happy to make some new ones with a crate if you would like.
If there are any that you would like to see variations of, let me know and I will be happy to oblige.
YARRRRRRRR!!! ;)