[HiGHFLYiN9]

So, a bit of an odd question I know, but I'm building a lamp and would like to mount a potentiometer/rheostat so I can adjust the brightness directly on the lamp. I know there are a million dimmers that can be installed on the wall or in-line with the cord, but I want something I can mount on the unit itself. Any ideas or suggestions for a part? 
 
Thanks! 
 
I did find this, but it's a bit large and awkward: 
http://www.amazon.com/Thomas-Betts-HLD500D-Dimmer-Control/dp/B000BOJ768/ref=pd_sim_hi_2