Several of the brides I've worked with on custom cake toppers have had me paint the groom in a vest. It looks nice and seems more comfortable for a summer wedding. I'd hate to stand out in the sun in a black tux.
These cufflinks by Thomas Pinkare actually on my shopping list. I adore them.
There are some lovely neckties on BowsnTies.com I like the idea of this stripe with several blues together.