At my sister's wedding she didn't want loads of formalities mainly because her in-laws did, so my dad kept interrupting everything with stupid toasts.
Please be upstanding for the vicar, the coach driver, the horses, the bar staff, his staff, his ex staff, his school mates, his army mates, anyone who wasn't there etc etc.
He did it before the meal, whilst we were eating, in between courses. They were mortified but everyone else understood and thought it was hilarious.