I though of:
Your hardware deserves better.
Also you can give some more realistic ones like my friend:
It just (not) works
Linux/GNU: We put GNU where it belongs.
“Own your computer” and “Free your computer”
more powerful than a speeding loco motive
If you don’t read the man pages, we’re going to ban you from the chat.
It’s pretty difficult to have a slogan when the price tag is reason enough to download it
Yeah but I’m thinking of some slogan like brand. For example once KDE had that Microsoft later copied
simple by default, powerful when needed
Probably thing valve does where all the other players in the market are so shit, you doing very little garners huge public support.
WHEEL OF LINUX!!! (I’ll take Arch, by the way, Pat!)
The least annoying launcher for your web browser
Linux: We never would have given you Klippy.
Join a Movement, not a Marketplace
Think
DifferentFreely.Be Your Own Tech Support
Tailored for You, By You
Batman runs Linux. Shouldn’t you?