Wannathis - 3d illustrations and freebies
REEL UNLIMITED - Unlimited design subscription for startups
Shapefest - A massive library of 3D shapes for everything!
UI Flow Cards - Construct web pages with ease, using cards
ccclaymoji - A fun little tool to make emojis that have a fun 3D-like effect.
Platforma - Wireframe library of layouts and UI elements