Wield the power of pink justice! Impose a suitable fine on anyone who’s forgotten or flat out failed to wear it pink on the day. The party-pooping perpetrator could also be subject to a forfeit – like having their nails painted pink.
Collar a colleague who’s not wearing enough pink
Explain to them their crime and their pink forfeit
How bad the forfeit is can be offset by how much of a fine they are willing to pay