This is one dollar. Rolled.

I never before used one of the options on my flash - a strobe (a.k.a. 'Disco Light'). I got this picture by setting the flash to 20Hz, rolling the coin and snapping a photo. Sounds easy? It took a while until I got all parameters in sync, and my coin rolling timing just right. I found that using a 2 second delay timer on the camera gave me enough time to get ready and roll the coin, hoping to get it in front of the camera in a precise moment of exposure.