We suggest you sew the badges to the sashes. Each girl graduating to the next club is recognized for the units she has completed. Girls completing the honor requirements are recognized as honor graduates. It is less expensive to purchase the activity book with all the activity pages. This allows the girls to build their books as you complete units.
Projects can be individual or group activities.
The girl may be experiencing a sense of failure which should not be perpetuated in Missionettes. You may want to consult with her parents to decide what is best for her. However, we suggest promoting her to the next club level so that she can remain in a club with her friends. I noticed some Adventure pins in the new Missionettes catalog. The adventure pins should be awarded when a girl completes a subsequent Adventure of the same type.