Humaaans - Mix-&-match illustrations of humans with a design library.
Jason - Infinitely hackable mobile client
Avataaars Generator - A simple avatar generator
Paychex - Are you in need of payroll services, HR services, 401(k) and benefits administration, or more? No matter the size of your business, Paychex can help.
AVATARZ - Lovely library of diverse 3D avatars
Kamon.io - Kamon makes an instrumentation library and Application Performance Monitoring tool that helps developers find and fix performance issues in microservices. Works best for Scala (Akka, Play, Lagom) and Java.