These multicolored knit and felted cups were imagined as a way to help my daughter learn about sorting things by color (I made them in yellow, blue, red, green and purple -- there should be an orange one, too, but I didn't have the right color yarn in my stash!). They tie in nicely with a Waldorf/Montessori-style environment in which handmade things are regularly used (and, of course, Waldorf schools teach knitting at an early age).
But first, the pattern. This is a great one for using little scraps of bold colors, and you can do your own felting experiment if you use different brands of yarn.
Gauge is not critical, but I got 3.5 stitches and 5 rounds per inch in the medium weight yarn, 3.5 stitches and 4.75 rounds per inch in the heavier red yarn (which was from Peace Fleece) and 3 stitches and 5 rounds per inch in the yellow (Louet Riverstone Bulky.
Finished size will vary, but before felting the medium-weight pieces are 8 inches long and about 8 inches around. The bulky pieces came out about the same width but I knit them to 9 inches instead (see, I told you it was experimental!).
Repeat as many times as you want with as many different colors as you want.