If you're undecided on your colour choices for your wedding theme, then you can't go wrong with black and white. It's a simple classic combination and one where you don't really need to worry about shades or items not coordinating.
What's great about this colour scheme is that you could also add a shot of another colour without it being too over the top. Additional bold colours work well such as orange, teal, red and emerald green. Just a splash here and there will make a huge impact.
A black and white wedding theme also allows the bride to wear an alternative colour wedding dress and really stand out.
I've created a collection of black and white handmade wedding accessories and decorations, here's a small selection but all my choices can be seen here: Black and white wedding theme.
Let me know what you think, and you can always visit my etsy store here: Handmade Bridal Accessories.