From the super cool blog Oh C-Chou!, a neat + simple (Ikea influenced) do-it-yourself project:
Paint wooden clipboard with white acrylic paint. Let dry and make a second layer if necessary. Drill the cups at the bottom, center, with the help of a drill. Place the cups on the clipboard at intervals of 15 cm, and secure them with screws. Make a hole at each end of the clipboard so that they can attach to the wall.
What you will need:
*1 wooden plank
*6 colored plastic goblets (Ikea style)
*White acrylic paint
*Roll or brush
note: the instructions are automatically translated from French using Google Translate.