Her idea provided the inspiration I needed. I just took it a step further and decided to add their handwritten names.
I used regular craft paint to make my kids' hands.
After letting them dry overnight I let them write their own names on the square using a washable fabric marker. I used that as my guide to embroider their names.
I love how each child's name is different and unique to them. My 4 year old is just learning to spell his name and identify each letter, the 7 year old thinks she cool because she knows how to write her name in cursive even though she's only a first grader, and I'm sure my oldest "signature" will change over time.
My squares are 12" (30.5 cm). I used a 2" (5.1 cm) sashing and a 2" (5.1 cm) border. (measurements before sewing)
I added these little tabs to the back for hanging. I found the backing fabric at JoAnn's. I scored on the AH Diamond Eye which I also found at JoAnn's~used my 50% off coupon!