Everyone loves a picture of their favorite pooch and with a simple digital camera, your child can take pictures to make extra money. Pass around fliers to neighbors advertising your service, particularly around special holidays. Have your children take pictures outdoors or at a setup in your home's rec room or basement. According to the Kidsmoney. org site, kids ages 8 to 15 can take advantage of this activity and make between $3 to $5 per photograph.