I used these instructions: http://www.instructables.com/id/Beeswax-Sushi-Candles/
For my materials, I purchased all of the beeswax on amazon. I got two large boxes of white and green, because I figured those would get the most use, and then a smaller box of assorted colors.
This is a LOT of supplies, I'll be able to do this craft more than once, for sure. I plan to take whatever is left from the crafternoon to the next meeting of the Anime Club.
I tried the California Roll first. There's no way i'm giving teens kitchen knives, so I used regular scissors to cut the wax and it works just fine. Also, I didn't bother with a blowdryer, I just held the wax in my hands and breathed on it a little to make it a bit more pliable and that seems to have worked fine.
To make the cucumber...
At this moment I only have one teen signed up, but she's my favorite teen so even if it's just her, me, and the new intern we'll have a great time.