Any ideas on how I would make a waterfall on a cake?????

You could pipe it on using a bag full of light blue and white kind of like this one...

http://www.chicohotsprings.com/images/cake3.jpg

Or you could drape fondant to look like a waterfall. Kind of like this only in shades of blue (just don't mix the blue in well and it will look streaked)...

http://www.cakesupplies.co.nz/drapes%20and%20lace/drapes%20015.jpg

I know I've also seen waterfalls done with blue piping gel but I can't find any pics.

Hi Stellab5,

I did a fishing cake not too long ago. I did a mini waterfall on the side of the cake. I used colored piping gel from my cake store & used real rocks around the bottom & sides of the waterfall. Like I said it is a mini waterfall. It is in my photos if you want to take a look. The already colored piping gel is so easy to use. I love it! Good luck on your waterfall!!!