Humaaans - Mix-&-match illustrations of humans with a design library.
Wannathis - 3d illustrations and freebies
Handsome Illustrations - Create unique illustrations for websites & applications.
Shapefest - A massive library of 3D shapes for everything!
Blush - Illustrations for everyone
ccclaymoji - A fun little tool to make emojis that have a fun 3D-like effect.