I love Saucy over at Saucy Sprinkles (formerly known as bloggedy, blog, blog). When I found out my friend was having twins I had to give Saucy's diaper cake a try. I followed her tutorial here.
My friend had two little boys which makes her a mom to four boys under the age of five (Go Big Families!) I used a Thomas theme and it was fairly easy to do. I love how it turned out! I hope my friend loves it too!