Now I do not sew, but I have heard that it can be difficult and tedious to sew the patches for Cubbies and Sparks on to the vests. I have heard of a company that makes adhesive sheets to place patches on uniforms. Designed for Scouts and other organizations, they have developed sheets for Cubbies and Sparks!!! The company is Badge Magic
Scroll down the page and on the left you will see a category for “Church Groups” and then under that you will see the links for the Cubbie and Sparks patches. If you use them, please leave a comment, or let me know how well they work (or not).