Sunday DIY: improving the bike front end

A little bit of Sunday DIY to improve the front end of the bike: a holder for the bottle cage that sits between the arms. So far I had installed it straight on the aero bars and stem, but the bottle wasn't flush. Instead of buying a stupidly expensive Xlab holder I made a little home-made solution out of a plastic box I got from Nico at Bike Passion. A little summary in pictures:

The box

Sides cut off and the holes for the bottle cage:

Final version installed with cable binders: