Even with every single movie (it seems) coming out with a 3D version, I didn't foresee the trend hitting weddings any time soon. Silly me. Check out this 3D save the date card:
Available on Etsy(where else?!), you can get it in your wedding colors. It comes with the 3D glasses and is surprisingly affordable at $2-$4 apiece (depending on the quantity of wedding invitations you buy). Take that, Pixar!