Nikon D3100 Fisheye Converter (18-55mm)?

Given the fact that I do not have the money to spend on a fisheye lens, I've decided to buy a wide-angle fisheye converter. I've been searching but can't really seem to find anything. Does anyone have any recommendations as to where to search or which converter to buy?

Get a semi-fisheye adapter with a 52mm thread to fit your lens. They're fun to play with if you don't mind the very poor optics. Try looking at Amazon, eBay or B&H.

I used to have one, and it's disgustingly poor quality.
might as well spend no money and get the fish eye effect via photoshop…

Just buy a Rokinon 8mm fisheye, brand new is around 250 and if you find a used one it could be less than 200, pretty good optics as well.