https://www.thingiverse.com/thing:3024272

https://www.researchgate.net/figure/Scutoid-mutant-eyes-are-rough-and-lack-some-photoreceptor-cells-Wild-type-canton-S-CS_fig1_40042389

http://www.dailymail.co.uk/sciencetech/article-6001033/Scientists-spot-new-shape-3D-form-called-scutoid-lets-cells-pack-without-wasting-energy.html