Duo Bottle Boys

Here's Daan (standing on the right) and two class mates Lars and Melle, with whom he's running a small business as a school assignment. He's selling thermos flasks by the name Duo Bottle.
Today is the market in Groningen (in Paddepoel mall) where all the competing students of the three northern provinces are presenting their product.
Of course Annemarie and I visited the boys and of course we bought a bottle.