Humaaans - Mix-&-match illustrations of humans with a design library.
InstaPart - Build circuit boards faster with parts delivered in <24 hrs
Control Illustrations - 108 free flat illustrations with customizable characters
JustSketchMe - Interactive 3d models for drawing reference
Ouch! Illustrations by Icons8 - Professional, perfectly matching, and customizable illustrations for any designs
Circuito.io - Instant code and wiring for your project