I cant even begin to try that out...
It would be cool, and useful, but I just cant do it.
Partially it is because I am just too lazy...
And partially because I am simply over-blown with all the stuff you need,
And all the steps you must take.
After you make the mold it isn't so hard,
But I have no idea where to find any of the materials!
However, you can see the steps and materials here:
http://www.macgayverplaymobil.be/Just go to customization tips and find, how to make molds for Playmobil.