There are several other instructables on this site that deal with boats/rafts built from recycled materials, most of which I didn't know about until I posted this instructable. Still, I see no harm in putting this out there.
Step 1: Materials
Other than than the plastic milk jugs, there were few parts. Two old broomsticks were used as well as one 4 cm wide, 1 meter long length of PVC pipe.
Zip ties were used to hold everything together. In the end I used 25.
Step 2: Prep the Frame
A small (~.7 cm) hole was drilled at each of the ends of the plastic and wooden segments. Zip ties will go through these holes and connect the segments to each other and to the milk jugs.