While at Home Depot, my daughter noticed the two sided white and chalk boards.
The thing was $9 and looked to be a nice simple project to design together :)
it uses #6 x1" flat head screws going into the screw in plaster anchors.
The locking system at the top is an easy slide in key to operate.
The base slot has a slight incline in the front so the board can be tilted forward a bit for removal.
I hope your kids will like it as much… So cheap too!
The author marked this model as their own original creation.