Our 8-year-old son designed this boat in Tinkercad for an upcoming LEGO competition. The picture shows the 50% scale model we printed today so full-size minifigs don't fit, but printed at full size there will be places for five LEGO minifigs in sitting position, complete with "bumps" to hold them on.
UPDATE: full-size picture at new entry for this model: http://www.thingiverse.com/thing:179803
Hacktastic blog: mathgrrl.com/hacktastic
Shapeways geekhaus store: shapeways.com/shops/mathgrrl
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