Flickr Goldmine

Probably my personal favorite when it comes to belly button-heavy photostreams. Lots of cosplay and auto/camera show girls:

https://www.flickr.com/photos/tmizo/

Good lord, outstanding find! Thanks for sharing! :D And welcome to the forums!

There's even more:

https://www.flickr.com/photos/55570664@N02/sets/

https://www.flickr.com/photos/31057587@N04/favorites/

I love it! Thank you, guys!