Magic locket inspired by the scene in the film "the illusionist". I do not know how it was made in the film so i designed my own to get the same effect, more or less. Its size is 50mm x 20mm x 10mm and it has room to put a small picture divided in two (each 15mm x 15mm).
It can be transformed from an oval shape to a heart shape just by twisting one of the pieces and then you can open it to show the picture inside.