Book care for the whole arc, not the ceremony
A wedding swallows more than its hours. There is the day before with arrivals and preparation, the long day itself when nobody is home at feeding time, and the morning after when the household surfaces late and hungover while a rabbit has been waiting since dawn. Plan cover for that whole arc: a booked sitter — not a guest, whose goodwill evaporates by the reception — who visits on the rehearsal day, covers every feed on the day itself, and does the next morning's round at the normal time. Build the booking early, because good small-pet sitters are claimed on popular event weekends just as venues are, and a trial visit needs to fit in before the busy week arrives.
Decide where the pets will be during the event
If the celebration is at home, move your small pets' enclosures well in advance to the quietest room in the house — far from music, slamming doors, curious children, and anyone who has been drinking and thinks the rabbit wants a cuddle. A 'do not open, pets resting' sign is not rude; it is the care plan. Introduce the room a few days early so the relocation is not itself part of the event-day shock. If fireworks are part of the celebration or likely nearby, that room should be internal, curtained, and stocked with extra bedding and hides for burrowing down, and the sitter should check in after the display rather than the pets riding it out unobserved.
Brief the sitter like the day depends on it
Because on the day, it does — you will be unreachable in the middle of your own wedding. Leave the routine written in running order, the vet's details, and clear thresholds for calling you versus calling the vet directly: appetite loss in a rabbit or guinea pig goes to the vet first and the wedding second. Have the sitter meet the pets and do a practice feed during a calm week, so event-day care is delivered by a familiar person following a rehearsed routine. Agree update times that suit the day — a photo after the evening feed reassures you without pulling you out of the celebration every hour. Plan the pets' feeding times against the event timetable explicitly: if the ceremony clashes with the usual evening feed, the sitter comes at the pets' normal hour anyway, because the animals cannot read the schedule and should not have their one fixed point of the day moved to suit the party.
Keep the pets' day aggressively ordinary
Inside their room, the event should be undetectable: same food at the same times, same cleaning rhythm, no party treats, no stream of visitors. Ask the sitter to keep lights and noise in the rest of the house as normal as they can during visits, and to double-check doors and enclosure latches against a house full of comings and goings — escapes during events usually involve a door left open by someone thinking about something else. Giving your sitter a KinsLe Care Pass for the event window puts each pet's routine, quirks, and vet information in their hands temporarily and clearly, so the pets' ordinary day survives your extraordinary one.