Since 1939, the Portugese Mathematical Society publishes the Gazeta de Matemática three times every year. On the cover of the first issue in 2021 the Gömböc appears as “the toy of the 21st century”. The issue contains an article by José Carlos Santos who summarizes the history of the Gömböc and also describes the application to turtle shells. The graphics on the cover refer to this application.
You can read the article here: