I thought you might want to see how to make a pocket halter.
Start with embroidery floss. I braided mine with four pieces of floss in a fish tail braid.
Then tie one end to a o-ring.
Bring the other end through the ring to form a look.
Now bring it through the other side to form two loops.
Loop one loop over the ears and the other over the nose.
You can make them to fit any size horse. For the Schleich I braided four strands.
Let me know if you make one.