Picture Stack

I made this picture stack for you to use anyway you want.
If you want to make one of your own, here it goes:
Open a new document. I went with US paper. Then click on U to open the rectangle tool, and set the dimensions as 3.25 width, 2.25 height. Click anywhere in the document and a shape will show up. If your default foreground/background colors are white/black, the rectangle should be white. In the layers area, click on this shape and simplify it.
Go back to the rectangle tool. Click x to invert the white/black colors in the colors window. Set the size to 3 width and 2 height. Click on the white rectangle and a black one will show up. Center it. In the layers palette control click on the two layers and then Control E and they'll be merged. Make as many copies as you want of this one, changing its shape a bit as you want and position them on your document the way you want it.
Save the PSD file so you can use it again.

DOWNLOAD

This is a PSD file. To use it, you open the pictures you want to put on the stack. Since each one is in its own layer, just position each picture above each shape. Then start playing with the controls of the move tool, until your picture covers the black area. You can merge each picture onto the picture shape, your choice. Just remember to save it with a different name.
Enjoy!
Patricia.