The Spidron™ was created by Dániel Erdély 

Polyspidrons is a puzzle ; for training, we can use some of its pieces to make little shapes ; with all its pieces, we can realize many sizeable shapes (see these shapes) ; only some of these shapes can be realized on the tray of Polyspidrons (example).

Grand-Polyspidrons has been created in order to be able to realize more shapes on the tray ; the start idea was to be able to realize on the tray the shapes dedicated to Maïlou Itoua (a star among the stars).

We can look upon Grand-Polyspidrons as a picture or as a mosaic whose design we can change.

It consists of the 54 pieces of Polyspidrons, all same coloured, to which we added 75 black pieces.

If we tint these black pieces with grey, the tray becomes :

For easier print, I give the solutions of the shapes as below :

You can buy Grand-Polyspidrons at Kadon Enterprises of Kate Jones.
You can choose one colour with black background or 2 colours.

The solutions are here (I will add others time after time).

I've a weakness for the shape below ("The flower") ; it took me a very longtime to find a solution ; I dedicate it to my mother, Marguerite Ferroul :

 

Bonvenon