You can use buisness cards to make a splitzer for your Fisheye! The size of the business card is perfect for your Fisheye lense. All you need is some tape, a business card and your Fisheye!
All you do is fold the tape so it double sticks and put it at the end of one side of the business card. Then decide where you want the splice-push it on the lense of your Fisheye 2 until the tape sticks well enough-then shoot! For more accurate splitzerizing, I recommend getting more than one business card, that way you can put it exactly where the other one left off.