Last slide was done using Photoshop 6 - Magnetic Lasso to cut out the squirrel beer glass, and the Move Tool to move it onto Mona Lisa (in a different file - just had both files open on the screen, then dragged the selection from one file to the other - real easy). I cut out her hand first, put it temporarily into a new file, and then moved it on top of the beer glass. Finally, I tidied up the edges by Picking the colour of the surrounding area, then Airbrushing the edges to blend it together seamlessly (not perfect but ok).