I had the same issue. When my son was 3 or 4, he wanted to help in the worst way! So I found a kit I didn't really have any interest in, and let him "paint" it with markers. When he was done, he helped me put it together. It sits in my display case, and even now (he's 8 now), he makes sure to show his buddies his car. He's into snap kits now, and my daughter is doing the marker car. Even she seems to like it!