A jersey wall, a concrete object about 1 meter tall and 3 meters wide, sometimes known as a K-Rail, used to separate traffic from edges, oncoming traffic or otherwise used as a barrier. To show perspective, the top image uses a lighter color rectangle and a shadow in the fork lift holes, while the bottom image just uses two lines.
Computer generated abstract art. Almost every page on the askwhy website generates abstract art, most of which goes to waste. Why not save some of it here? This is a start.
svg images made by the askwhy! abstract art generator at http://www.askwhy.co.uk/awgames/svgart.php
Anyone can use this generator and submit the results here at Open Clip Art... or not, if you want to keep them for yourself.