Iittala Alvar Aalto Collection shallow bowl, dish or serving tray is rio brown mouth-blown glass. The Aalto vase turned the unpredictable nature of mouth-blown glass into an eternally contemporary design feature. While the Aalto vase sits beautifully on its own and in groups, it lends itself to many varied and most interesting floral arrangements. Mouth blown glass naturally varies in thickness, making each and every vase completely unique and individual.