My friend Dennis Brooks does exactly that, building paper models and donating them to local children's hospitals. It's a very commendable thing. As far as crashes I 'thought' I was prepared and had created a full created data backup which I stored online. Unfortunately when I downloaded to restore it shows as corrupt. I have not given up on it yet but I did spend upward of 14 hrs working on it...I'll try again in a few days and hopefully have better results.