I've handmade all their jewellery for the day (crystal necklace earrigs & bracelet) and they all have personalised champagne flutes (for the 3 adults. My 8 year old has a personalised juice glass) and will be getting them all a box of chocs each and a card.
The best men have less (as there's 5 of them and I don't think they're the jewellery wearing type

) So they just have a personalised beer glass and a thank you card.
I did want to do a bit more for them but with such a big wedding party i've already gone over budget