Duplicating Items in TF2?

I've seen people doing it on youtube, but was wondering if someone could make their own here? Mostly all the other duplicating item hacks are scams so that's why I requested one should be made here.

You can force items if you knew how.

This cannot be done as far as I know.

Again people with wanting TF2 item's,
YOU NEED TO UNDER STAND "THIS CAN NEVER EVER EVER CAN BE DONE AS THE ITEMS ARE SERVER SIDED"

Duplicating glitches have occurred in tf2 a few times, but it is pretty rare now. Although if you are smart you can find other methods of getting items easily. For example, about 4 months ago a website that has people trade in tf2 items for their credits then use the credits to buy tf2 items had a glith where you could sell the phigositnator (I cant spell that thing for shit) for more credits then it costed to buy them at their store. In a few hours people totally fucked up thei whole site's system with that.

So just be creative and keep your eyes out, if a way of getting free items that anyone could do or figure out then it would be fixed faster then Babe Newell eating a hamburger.