Banners are awesome...They are pretty, very easy to make and you can make a banner for almost any occasion. I try to make mine about 5, 5 inches tall so there would be more of them fitting on the page. Obviously you can make almost any size up to almost 12 inches. But this way it does saves a lot of cardstock. I love 3D effect so my banners a usually made from 3 and more layers and I love using foam tape for even nicer look. I also use punch tool to create a little hole in corners to run the ribbon through.
Last year I made a birthday banner for our son's party and I really liked how it came out. This year I really didn't want to do anything like that but then my hubby got me the cricut and I also looked the ones they sell and decided that I have plenty of paper and Sesame street cartridges so I just have to make the decoration again.
I love how they came out. I used 8x8 colored textured cardstock with 5x5 square on the top. Letters are also textured with polka dot embossing folder. To make it toke about 2 hours.