WebmasterScripts.se - Instant Download $10 Script Cart: Pet Rate Pro
Here we have a really great looking pet rating website, where your visitors can signup and submit pictures of their pets for people to rate.
The site also has a banner advertising system, where you can charge people to advertise their banners with you for whatever price you choose.
The site also includes a donation button, so if you support your local cat sanctuary/dog kennels, then you will be able to collect donations for them.
This type of website creates a flood of traffic, and is a really ideal place to promote your related affiliate programs and google adsense to make extra money.