jquery.pikit
Generate placement image for your website through many different placeholder services.
Original author: McPants
Demo: https://www.jqueryscript.net/demo/Random-Placeholder-Images-jQuery-pikit/
Website: https://www.jqueryscript.net/other/Random-Placeholder-Images-jQuery-pikit.html
Update:
Jan 23, 2018
Removed unavailable services; added placeimg.com