If you have a smart phone download two apps:
1. 3d Camera
2. Juxtaposer
I will demonstrate how these work in the Around the World in 3d Workshop
You can also, if you know how to use it, make use of photo shop and any camera. Take two separate photos of someone, moving from the left to the right about 2. 5 inches to take the second picture. Then open both photos in Photoshop - select all of the right image and copy it. Then paste it into the left image. Now you have the right image as a layer. Turn the RED channel off on the layer by double clicking the layer and take the check box off the red channel. Now use the move tool to superimpose the right image on top of the left image.