One of nice ideas for Save-The-Date cards for weddings is to print them on fridge magnets. Those cards still reproduce color super nicely, come in a variety of shapes and sizes, but most importantly wedding guests can put them on the fridge to remember about the upcoming wedding.
In the Save-The-Date cards that I create for my clients I also include their website address. This is a custom website that I create where we can include information about the couple (how they met, what they like, etc), the wedding party, wedding ceremony and reception, accommodation, etc
Below are couple of photos of save-the-date magnets that I will be delivering to Kathy & Ned in couple of hours. The first photo of the box with the bow was taken with my new camera: Fuji X100. It's a legendary camera with a very retro look but with an amazing lens and performing super well in low light conditions.