I love this project and have been doing these today with alcohol inks. I paint gesso on a sheet of bristol paper, but card stock would work great too. After it’s dry, I take small felt pads on a stamp block (made my own with sticky velcro
Vbs possible big art project. Great idea for a mosaic--Maybe copy the photo in black and white on copier, then have kids complete it by covering all black and white by looking at the original. Could use an original of Jesus.