Won't work. In my house, we live by a rule that my great-grandfather taught me:
One cat; one tail.
IMO (I'm a genetic Texan; it wouldn't be right for me to type "IMHO"), you're doing right by letting your son work on "stuff' for his project at his own pace.
Trust me, you don't want my screed on Eagle Scout projects/parental co-opting/most fourteen-year-old Eagles. I can screedificate at length.
See how excited I am about being part of this thread?