Pan / Tilt mount for DSLR
An ad for this product popped onto my FaceBook page this morning - The PT785-S pan and tilt servo head.

Basically a servo controlled pan/tilt rig, which could take your DSLR for video or stills photography.
Mounts under or onto a surface/rig

Needs a motor controller to drive it. Controllers start at $49 for a manual 2 servo control, and can go all the way to a full wireless RC kit.
$349.99 for the servo head.
PT785-S Pan & Tilt System
Could be great for remote operation (Wildlife etc) or still frame movie capture, full video rig on the end of a jib etc.
Canon EOS 1N/1D/1D MKII/5D MKII - Canon 15mm 2.8 / 17-35mm 2.8 / 28-70mm 2.8 / 70-200mm 2.8 / 300mm 2.8 / 600mm 4 / 24mm 1.4 / 50mm 1.2 / 50mm 1.4 / 85mm 1.2 / 100mm 2.8 Macro
Fuji X100 - Fuji X-Pro1 / XF18mmF2 R / XF35mmF1.4 R / XF60mmF2.4 R Macro
Canonet GIII QL17