Memory cooling

Hello, So I have DDR3 1333Mhz sticks, and I am thinking about overclocking them. But they don't have any metal which would reduce the heat. Can you guys recommend anything to cool down my memory? Maybe copper cases for RAM or something I am new at this topic so any recommendations? 

You won't be limited by heat but by voltages and timings. There's little point in overclocking memory, you're better off getting more RAM and overclocking the CPU.

www.youtube.com/watch?v=dWgzA2C61z4