2 new Sierpinski castles

[Garth Thornton]

I have reduced the number of holons by using a shared rotational tile holon for the symmetry, which also makes it much easier to create and modify the structure.
Sierp Castle Monteny #5:
   

Sierpescher Tower:
   


  Sierp Castle Monteny 5.xep (Size: 16.5 KB / Downloads: 46)

  Sierpescher tower.xep (Size: 16.52 KB / Downloads: 40)