Help with Pictures

I'm looking for some images to help with a future video.

 

The images I need to picture a metaphor of sex, i.e. a train entering a tunnel or it can be a picture that eludes to it, i.e. a twinkie though a doughnut hole.

 

These images must be under the creative commons license, they can be from Flickr, etc or your own personal pictures.

 

The pictures should not contain any actual sexual images.

 

If you send me pictures, I will assume you hold the license and are licensing me to use them under a creative commons license.

Send pictures to: [e-mail]