Models
Schuko 3D Printable Models. Makeshape.co have 2 Schuko 3D Printable Models.
Mennekes male extension Type 2 for Schuko Adapter without locking mechanism (typical AliExpress versions)
Thingiverse
Atriom
Free
Schuko Steckdosen Abdeckung Kindersicherung – Power Socket Plug Cover Child Lock
Printables
Fly
Free