Late to the party ... I use a strainer and a stainless steel bowl. Put rice in strainer, add water through the rice, swish it around, rinse, repeat as needed, drain as appropriate.
The pics below show an 8-inch strainer and the Grip n Whip bowl, but any bowl will work well as will most appropriate-sized strainers. I don't see a need to purchase a specialized rice rinser for so simple a task, especially when one probably has everything needed at hand anyway.