Do me a huge favour, and please go through the following list, picking the ones you like... feel free to select as many as you like.
Edit: the slogans would be used for posters 'n' such, like these:
Which slogan(s) floats yer boat?
More slogans to pick from...
Even MORE slogans...!
Also, if you have any other suggestions, comment with them and we'll gladly steal them for our own use if they're good. ;)