There are a couple of ways to do the zebra print. One you can use fondant, roll it out and cut out the zebra stripe patterns, or two, you can paint on the zebra stripes if you use fondant to cover the cake. You can also pipe it on if you don't want to use fondant but I find it does not look as good. Hope this helps.
I just roll out some black fondant and cut out zebra stripes with a pizza cutter. Then I put just a little bit of water on the back of the stripes and stick them on the cake that is already covred in white fondant. It's very easy, but it does take a while.
Here's a video tutorial: http://www.creativecelebrationcakes.co.uk/page49.htm
I used really thin black fondant cut with a pizza cutter and applied to the buttercream. It was simple and fun, but a bit time consuming. (Pic in my album)
I went and bought some zebra striped scrapbooking paper and used that as a template for my stripes. I then rolled out my balck fondant and with a sharp thin knife I cut the pieces out. It was very time consuming but it looked pretty good when I was done. I'm getting ready to do another one of those cakes this weekend. 
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