The Sushi Bazooka
http://en.rocketnews24.com/2012/07/12/push-out-delicious-rolls-of-sushi-in-minutes-with-sushi-bazooka
VS
The "Smart Han" by Takara Tomy Arts
Japan Trend Shop: Smart Han Bento Lunchbox
However, note that the ads for he newly-released “Smart Han" have a funky '70s look but with a few kinky details such as...
..."Screw up storage" and "Hand Job!" "RIce one!"
See the original Takara Tomy Arts website for the "Smart Han" at: http://www.takaratomy-arts.co.jp/specials/smarthan/