I want to start a PPC campaign for an ecommerce site, but my ads are rejected due to my URL being offensive.  The name works great from a branding perspective, but it has kept me from being listed in certain directories and advertisements.

I thought about buying a separate domain to host the landing pages for the PPC campaign where the user would then be redirected to my product page for purchasing.

Is this a good idea?  Would you recommend another approach?