Hi Jeroen,  The information supplied really is too vague for anyone
to specifically identify the item for you.  As the editor responded, it
sounds like you have a small musical collectible toy that is fashioned
to look like an organ grinder.

In all probability you have a novelty item that was made by a German
or Austrian manufacturer that incorporated a Lador musical mechanism,
made in Sainte-Croix, Switzerland, as its musical and mechanical motor
drive.

As a wild guess, you may have what is known as a "Hedge Hog" organ
grinder, where the little man has spiked hair like a porcupine and
usually is wearing a plaid shirt, beige pants, and rubberized boots.
I believe they were made by a German or Austrian company and I have
seen them fitted with Lador, Reuge or Thorens small 18-note mechanical
mechanisms.  When the music played the organ grinder's arm moved around
and around as if cranking the organ; his head moved as did his feet,
which shuffled in such a way that he actually pushed the little cart
around in a circle.

Most sincerely,
Don Caine - Proprietor, The Music Box Repair Shop Unlimited
Lomita, California, USA