When it comes to creating your Monogram style consider:
The style and decor of your home or event. Floral, vintage, geometric in traditional English, French, Chinese, country or rustic, minimalist, carved or modern.
How far are you willing to go? Linen Napkins, beverage napkins and table linen? How about china, silver or glassware?
Most things that you will monogram for your wedding will be going home with you afterwards, make sure you can reuse those items.