I have used the freezer paper method to make labels for my quilts by printing them out. My little great niece just turned 9 in Feb and her Dad said she askes him to read her "heart" to her all the time. It's been washed over the last 9 years and the ink is still hanging on there. I just print them and then cut the label in a heart shape and make sure I heat set the ink with a hot iron. Good luck hope this helps you.
crafty_linda_b