One of the coolest Flickr sets I've seen in a while. Marc Shur's Sign Language features hundreds of old/retro signs.
There's something I really love about pin-up/retro models. This set features Kessy P. Ironic, a pin-up model from Augsburg, Germany. Her love of the 50's, rockabilly, and rock n' rolll led to her becoming a pin-up model.