A point on French cuffs.
If they are worn at all then it is worth wearing cufflinks that have something on both sides of the link. It is interesting to note that they only began to be made with one side decorated when people could not afford four stones or similar decorations. Given the price of some today, that can hardly be an excuse.
And please don't be humourous with your cufflinks. They are only marginally better than humourous ties, and a little worse than humourous socks. Why would you go to the effort in a formal outfit of wearing double cuffs, only to join them with a pair of golf clubs or breasts? Novelty cufflinks should be just that - a one-off, a joke. It wears rather thin when told every day.