Attached Link: https://home.comcast.net/~jhe1024/ChefHat.obj

I did a quick check of the usual suspects (DAZ, RDNA, TurboSquid, 3D Cafe, and Terra Incognita) and I couldn't find anything. I'm attaching a link to a chef's hat I just now whomped up in Wings 3D... I don't have a copy of Poser on this computer, so I can't check to see how it imports, but it ought to work okay, as long as the polygon smoothing doesn't warp it out of shape. I don't have the tools here to turn it into a prop file, but you should be able to import it okay. I expect a simple white texture with little or no highlighting will look okay with it.

If it's close but not quite, please let me know and I'll see if I can't fix it up some more.

HTH,
Jack