If Valve does implement your idea, they aren't going to use your more than likely stuffty model.Just give them the idea and if they like it they'll make a model themselves.
'Hiring'? What is that? It's bullstuff. Either learn to model, tell Valve directly, or shut up.
How?
valve reads the steam forums for ideas on whet thay should make like they did with the equilizer
Can I have your steam?
http://forums.steampowered.com/forums/forumdisplay.php?f=80
I'm not old enough...D: