Get in on the ground floor for the best share. (Note: this started in my head as a playful jab, but i'm half serious after thinking about it).

Concept: A female-only gym for those who wish to be unfettered by social norms.

Risks: With that much concentrated testost-rogen (yes, I made that word up) in one place, you'll have to manage the business wearing kevlar clothing with a titanium cup and throat guard.

Reward: Profit from angst.

Contest: Come up with the best business name and slogan.

[Disclaimer: I already know that this thread will either be really funny or will be a spectacular failure and will mark me on the forum]

I'll start:
Name: Solitary Crowd
Slogan: An Oxymoron in Action that gets you Results!

Hey, I never claimed to be a marketing type. Cut me some slack!. :)

Damn it.....I thought I might finally be able to sell my sperm in bulk!

Name: The Sweaty Clam
Slogan: Because girls can pump it harder!

Curves

Bwaahahahaha......

Word of advice... use eye protection, shin guards, and carry gift cards to Godiva Chocolates, Ben & Jerry's ,good coffee, and thick cut potatoe chips. We don't just go for the twig and berries these days. Women like me are easily distracted and bribed into good behaviour.

There are already female only gyms all over the place

Those gyms don't satisfy the target market I am going for.