Here's the banner I made for the baby shower last weekend. Here's how I made it:
Take a 6x12 sheet of paper and make marks at 5" and 10" on the top. On the bottom make marks at 2.5" and 7.5". You can draw cheat lines if you want and then cut. A 12x12 will make 6 triangles. For the second layer, cut triangles that are 1/4" smaller (5.5x12 and 4.5" wide).
The only place that I could find to take pictures was on Carver's crib. haha All of the other walls had too much of a glare.
Recollections Pink (#98959) and White
DCWV Nana's Nursery Baby Girl
Flowers - New Arrival 4"
Michaels ribbon cut at 8 feet