If you’re like many parents you put pictures and drawings that your children have created on the refrigerator. I don’t think it’s out of line to display anything you’re proud of. I hung some of my own college tests on there a few years back. I have a picture my 14 year old drew hanging there. I have several pictures that my younger son made. Heck, if my husband were into architecture or engineering I’d hang cad drawings up there if he gave them to me. How long will you or did you display things on the fridge?