WE BOUGHT THE FLAGS
Since Kwanza is registered here in Luxembourg we have to abide by the rules and fly the Luxembourg Red Lion (in place of the Ensign). So we found a shop in Lorentzweiler that specialises in flags, and bought a 50 x 80 cm and a 70 x 100 cm flag.
They are super cool. Almost as nice as the Welsh Dragon. See below:

This is the official Luxembourg Maritime flag. Red lion overlayed on background of blue and white horizantal stripes.