I used Photoshop Elements 5.0 to make mine; and then had help from someone on here who has lots more experience than I do with Photoshop.

The first thing you will need is close ups of your pets. Then with photoshop or one of the other programs, you select out the head shot, and start placing it the way you want it.

My first one took me 5 hours and I gave up and had someone else make me one. I had never used Photoshop before. I am getting better; only THREE hour for this one! So someone else with more experience can walk you through it better than I can.