If I had to wear a suit to work, I would definitely buy these R2-D2 USB flash drive cufflinks. They can store 2GB of data each, which is pretty good. In fact, I can't think of a better cufflink—except a pair that also made R2 sounds.
They are silver plated, with the R2-D2 paint job finished in enamel. They'll cost around £130 for the pair. [Cufflinks]