This custom DIY shoulder rig will turn your camera into a video making monster for $200
DIY Shoulder Rig 2.0 - Paoson Blog - Photo / Video
Homemade Shoulder Rig Plans
Assemble an Inexpensive DSLR Shoulder Rig. 5 Items You'll Need
Amazon.com : NEEWER Camera Shoulder Rig, Video Film Making System Kit for DSLR Camera and Camcorder with Soft Rubber Shoulder Pad and Dual Hand Grips, Compatible with Canon/Nikon/Sony, etc (Blue + Black) :