How do you make a 3D model of replicating DNA

I have colored packaging peanuts, toothpicks, glue and tape.
What else will i need and how do i make this ?
Detailed step-by-step instructions would be great or a video would be awesome too. (:

I found this video about replicating DNA on youtube, check it out, hope it helps

http://www.youtube.com/watch?v=teV62zrm2…