An accessory that can be used with the Fisheye 2 is the Colorpslash Flash!
In 2007 I won a contest that was organized by the embassy in Chile and received the Fisheye 2.
I was very happy and I tried out all its functions. I love the Fisheye for its simplicity, functions, and its entertaining multiple exposure. At that time, I still don’t have a Colorsplash Flash. But a friend had lent me his LC-A with its flash. So I tried it right away and started mixing the results with the Fisheye 2 with Flash.
This is mixed with multiple exposures or long exposures yielded wonderful explosion of colors. The photos I took were very simple, yet very entertaining. After the first roll with this mixture and because I had to return the LC-A and the Flash, I bought my own Colorsplash.
Putting that matter aside, one of the best films for this combination is the Kodak Prolmage.
So go find your duo color explosion in Lomography!