Creative Tank

First, make your choice of your fish eye view with the Elliptical Marquee Tool (M). Hold down the "Shift" key while picking, so that you will keep the circle completely round. The selection is the most significant part to get a good Fish-eye effect. The majority of the distortion will be at the sides and heaps of focus on the center, so anchor the middle with something interesting.

Inverse your selection by heading off to select Inverse (Shift+Ctrl+I). Now press "Delete". Now you have chopped down your image to your Fish-eye lens. Reverse your selection (Shift+Ctrl+I) to get your selection back to the Fish-eye lens.

While still selected, Crop the image by going straight to Image Crop. With this done, you need to only have your Fish-eye lens as your image.
With your selection still on, go to Filter Warp Spherize. There will be the pop up window for settings of spherize. Set the sum to one hundred pc and the Mode to Ordinary and press "OK".

There you have it, your own made Fish-eyed view picture. Add a background color to look more attractive.