I have the fabulous Marc Heiremans Seguso Vetri d'Arte book since Christmas, and as it goes -- once you know what to look out for
I managed to find two nice Mario Pinzoni pieces recently:
1. lovely sommerso vase, interestingly in a colour scheme which is not mentioned in the book (cranberry cased in Aquamarina, with a thin layer of green in beween). Stands a little over 16 cm tall.
Pictured (as a stoppered decanter) in the book on page 170, selective modellist 1966, pattern nr 13874.
(And I did a little digging through older threads, and made updates where the attributions were uncertain.)