tape worked great! as for heads, we used foam heads, but you could use a balloon, or wrap 1/2 a head at a time and put them together.
​another important tip is not to wrap the body from the roll, but to cut one-foot strips and apply them to the figure. (mark does this in his videos) wrapping directly from the roll made the tape far too tight. once a lot of tape strips were on, some careful wrapping from the roll could be done, but be careful and watchful.
i used safety envelope cutters that worked well, but if kids twisted them, they snapped, so i had extra. scissors will do 