Thi is a modification of my original model. This one is enlarged to 80 mm height to the size of a banknote. If your Christmas presents also include money you can hide it here and hang it on the tree.
Of course you don't have to print the bottom part and you can have just a slightly bigger version of the original angel mini.
It needs a little pressure to open. See the picture. It's a press and pull system.
Update:
For a better looking print added more thickness (material) at the top of the head inside the 1mm version. There was too large radius at the top of the head and the layers were harder to connect to each other.
For the last few layers I recommend to insert the height range modifier with 0.1 mm
The author remixed this model.
enlarged to 80 mm, bottom cover