What kinda clay or materials do I need to create or repair a bodykit?

[Makahveli]

I need to do some major bodywork on a front bumper of mine that fell off while driving on the freeway, yeah picture how ugly that got! Problem is I think its all custom cause I can't find it at all on the internet and its for my other car not the explorer...sorry! I really did like this bumper too, does anybody know what kinda clay I'm suppose to buy to shape a bodykit kinda bumper??? Or where to look?

 

[Joe Dirt]

SEM makes a flexible bumper putty, talk to an automotive paint supply vendor like FinishMaster, they may have more ideas if it's a massive fix...