Once dried, cut the excess cardboard so that all that remains is the photo.

On the back, use a ruler to measure your dimensions. Once measured, draw a grid (a pencil is recommended) on the back, making sure that all the boxes are roughly the same size. A calculator is helpful in dividing up your dimensions evenly.

Now draw your jigsaw puzzle details. If you need help, look to a household puzzle for guidance. Once you have drawn your puzzle designs, you can erase any lines that you don't plan on cutting. This will also make the back of the puzzle pieces look much cleaner.

Now you're ready to cut. An x-acto knife is probably the best tool for the job. Once you're finished cutting, you've got a great photo puzzle!