I made a 3D book for the art contest of the Hungarian Tolkien Society ([link]
) and I got the first palce in the "other" categorie.
The closed book is 21,5 cm high and 15,5 cm wide.
The opened book reminds me of the star of Feanor.
"The seven sons of Fëanor were Maedhros the tall; Maglor the mighty singer, whose voice was heard far over land and sea; Celegorm the fair, and Caranthir the dark; Curufin the crafty, who inherited most his father's skill of hand; and the youngest Amrod and Amras, who were twin brothers, alike in mood and face."
(J.R.R. Tolkien "The Silmarillion")
Amrod and Amras: [link]