1) You need a small circular piece of fabric (for example, the diameter of a glass) and four “patterns” like this:
2) The four patterns are sewn in this way:
And the result sewns to the circular piece (red dotted line).
(It has to be an area without sewing to turn it upside-down an insert the filling)
3) Turn it upside-down and insert the filling into the hole (in the photo we used lentils, but then we change it and used pieces of wadding. That’s more fluffy :P)
You just need to draw and embroider the faces and customize them!
I hope it has been helpful :3 (and sorry for my horrible English xD)