Where can i get some of these from!!

[Mojogoes]

I'm thinking this is old news but i saw this vid and thought they were a good mod.......i believe there are also some skids called Garilla also but as i've just fit some t-rex 500 skids to my 3dts i thought it would be very easy changing them out for these ones specificly for the T-Rex 500 [ame]http://uk.youtube.com/watch?v=ah4moF4COAE&feature=related[/ame]