Then she used red and blue felt to cut out a big circle for the front and little circles to go above it. I think she used the lid of jars that she placed on the vests to guess at the size and then used the lids as a template to cut out all the rest for each vest.

 For the stripes on the shoulders and the sides she cut out blue and green felt rectangles that would fit on the shoulders and sides and sewed them onto a larger black piece of felt and then sewed them as one piece onto the the shoulders and sides of each vest..but you could hot glue them on.

 Then she sewed on pieces of felt to sides of vests and inside of vests for easy putting on and taking off. You can see better photos of how to do this on 

These little boys were in pure heaven!