I had to laugh when I saw the title of this thread. My dd won't be 4 until the end of February and we just bought her winter boots in size 12! My dh's feet are at least size 13 and mine are 11 1/2. The poor kid didn't stand a chance. When I was pregnant, I used to joke, "never mind the head. Just get the feet out!"
Then, of course, she was born with her head in the 95th percentile and I wasn't laughing about that anymore. She's just like me--huge head and feet and skinny everywhere in between. Luckily, by some miracle, she doesn't seem to look out of proportion.
As for boots; depending on how cold it is where you live, maybe you could try some really great, funky rainboots. The sizes seem much more forgiving and if they're too big, she can put insoles in them. That's what we've done to extend the life of at least some of her footwear.
What a great idea about the angels. I come from a city with 5 major correctional facilities and I saw the effects parental incarceration had on kids. I wonder if there's anything like that here in Canada? Good luck.