I actually made this last year, but only just put it out this past weekend in celebration of back to school.
All it is (as per the instructions I found on Pinterest) is two different sized embroidery hoops with crayons hot glued onto them.
I think the grand total for this came in at about $4?
This one might be a bit small for our door.
Maybe a double-layered one would have been more proportionate, but it is a cute welcome home after a long day at school.
Have a great one!