That is a good age to do one on one projects that benefit others.
They don't need to be expensive or take a lot of time.
They increase the person's sense of self worth, confidence and empathy for others if done right.
If they have a pet maybe making a pet bed or toy for the pet is a place to start.
Maybe making fleece scarves to give to an eldercare home. Fleece in the clearance bins at Joanns is really really cheap and certainly big enough to make scarves.
Have him participate in the shopping, making and giving. Every part teaches.