As of the 1.7.9 update, downloading stickfigures can be done without any external tools for both Android and iOS users! The only exception is ZIP files, instructions for downloading and using them are in this FAQ section here.
Note: Stickfigure thumbnails are temporarily disabled due to negatively affecting the website's performance. You can still view the thumbnail by going into the stickfigure's file page (click "Comments" at the bottom-right of a stickfigure listing).
This pack contains a lot of stuff. Over 40 stickfigures are included. There are some good, some bad, and some ugly :/
One of those guys from that one movie.