This is another of my lego aircrafts. The 737 is the best selling aircraft up to date, and this version is buyable in design by me/LDD. It comes in a number of different design interiors (with either 6 seats or 8, depending on configuration: 1 Business, 2 eco+ 3 economy, 2 business, 4 economy or 8 economy). The biggest problem is to give the aircraft a 737 shape, pilot's don't fit in the cockpit. But a part from that, it is a sturdy model, which is very fun to play with (I've been playing with this model since 2004, even if it has gone a few changes since then). A few secrets of the model are the baggage compartment in the tail section (the tail section lifts easily revealing it) and the engine details.