Here is the card I made for my beautiful niece who was 1 a few weeks ago. This card is almost entirely made on my silhouette.
First I cut a number 1 from pink card and embossed it with cuttlebug Swiss dots. I also cut a coordinating white number 1 to layer onto. I also cut little banner triangles from white card, and some patterned paper I got in a magazine last year, each one with a letter of her name.
I placed some pink card behind the letter banners to make them stand out. Each little banner is attached to some twine so it falls like a real banner.