Why just wear cufflinks with one to two colours. That would be very plain. Why not be the rainbow and spread some love through the office enriching the lives of others? It could work.
Rhodium plated cufflinks
Dimensions (LxWxH): 19mm x 13mm x 2.5mm (approx.)
Weight per cufflink: approx. 5.6g (light)
Size = x mm (W x H)