If you so desire it (and you should) I’ll take a heinous individual portrait of each of your guest. I’ll encourage them, using my natural jerk talent, to pull the ugliest face they can.
The fun doesn’t stop there; I’ll send you a pack of cards. Not any old cards, and certainly not the sort of playing cards bought by rough lads on a stag do, I’ll send you a pack of neat, nicely printed set of guest cards. In your set of cards you’ll find an individual card for each of your honoured guests.
A set of ugly cards to remember each and everyone of your guests will be a unique, and potentially hilarious reminder of the best day of your life. And potentially great blackmail fodder when you call on your guest for babysitting duties in the future.