American Girl Stable Door Hinge
My daughter's American Girl Stable door hinge broke and this set is currently no longer in production...and it was EXPENSIVE. Luckily, it's a rather simple shape. Made this in about 10 minutes on TinkerCAD. It's not pretty, but it works perfectly. Possibly nobody else will need this, but it's here in case anyone needs it. Add more walls, maybe 4-5 at least.
Recommend using brim and supports.
UPDATE: Made slight revision in v2 with an arch as the original version was a little weak. This should help a little. Also, likely may not need supports on the arch, but tree supports touching build plate doesn't add much time to this small print and will result in better looking print (obviously).