Sometimes, Google does something just because it's fun. Nexus Contraptions, a browser-based game in the style of Apparatus is one of those things. Move objects around so they get in the path of a "g" branded ball, and bounce it into the funnel. Sounds easy, but it isn't. Sounds fun, and it is! You're timed, so if you're feeling competitive you have that, too.
Fun aside, is this the first step to Google integrating web gaming? If so, I like where it's going based on this one. Now quit listening to me and go waste some time!