Here's a video of me putting together a simple little rail made almost entirely out of scrap/recycled steel.
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" width="480" height="340" codebase="http://fpdownload.macromedia.com/get/flashplayer/current/swflash.cab"><param name="movie" value="https://www.newschoolers.com/ext/jw_player/player-4.6.swf"><param name="autoplay" value="true"><param name="quality" value="high"><param name="allowScriptAccess" value="always"><param name="allowFullScreen" value="true"><param name="flashvars" value="file=http://media.nscdn.com/uploads/member/videos.264/1276002422_1276001608Rail_Build_Time_Lapse_0001.mp4&link=https://www.newschoolers.com/web/content/viewvideo/id/355424/&config=http://media.nscdn.com/uploads/site/embed/v1nsjwembed.xml"><embed type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" src="https://www.newschoolers.com/ext/jw_player/player-4.6.swf" width="480" height="340" bgcolor="000000" allowfullscreen="true" allowscriptaccess="always" flashvars="file=http://media.nscdn.com/uploads/member/videos.264/1276002422_1276001608Rail_Build_Time_Lapse_0001.mp4&link=https://www.newschoolers.com/web/content/viewvideo/id/355424/&config=http://media.nscdn.com/uploads/site/embed/v1nsjwembed.xml" /></object><div style="font-family: arial, sans-serif; font-size: 10px;">Courtesy of <a href="https://www.newschoolers.com">Newschoolers.com</a></div>