This idea came about because the plastic shoebox tubs we used for art supplies were getting filled with legos, barrettes, and other small items.
Everything stays better organized and it's easier to spot the stray toy or rock that ends up in it.
I used a regular spice turntable from the big box store, four mesh pencil holders and three mesh paperclip holders (Rubbermaid), and lots of hot glue.
Hot glue the cups in a pleasing arrangement on the turntable and fill with pens, pencils, brushes, crayons, scissors, erasers, etc.
At our house we call this "the homework center". Moves easily to kitchen table, counter, coffee table, and desk.