Romanian team from Bals:
Here you can practice Nets of Polyhedra
https://www.khanacademy.org/math/geometry-home/geometry-volume-surface-area/geometry-surface-area/e/nets-of-3d-figures
Romanian team from Cluj-Napoca
Romanian team from Bals
Serbian team from Žitoradja
Serbian team from Belgrade
We made sweet Platonic solids with candies and toothpicks
Croatian Team from Ivanić-grad
Serbian Team from Čačak
Spanish Team - IES Al-Qázeres
Croatian Team from Novska