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Rubberband Plane Kit, Hishou
This is a rubberband plane with distinction. It dates from 1911, when it crossed Japan’s Sumida River in a model plane contest. The kit includes balsa wood, Styrofoam, rubber bands and two reverse pitch propellers. Clear off the dining room table and get your dad a cup of coffee. He might be a while.
$25 at Think Geek

