The Royal Danish Post, originally uploaded by [Zakkaliciousness].
The Royal Danish Post has, not surprisingly, a massive fleet of custom-designed bikes. Sturdy and practical, complete with heavy-duty kickstands under the front carrier (on wheels so you just have to hop on and ride and they pop up again - saving time) and a water bottle holder.
I was a postman on Saturdays for a period a few years back. The bikes are surprisingly easy to ride, even with a full load. Some of the routes in the city centre use Christiania bikes with even more cargo space.
The postal carrier on the right could easily slide ride into the theme over at Copenhagen Cycle Chic