You have good answers already on the paperwork.
You could get a bracelet (see Runner ID and similar) that runners wear when they carry no ID. My son and husband both wear them. You can put any info you want on the metal strip that is on the bracelet - her name, DOB, your number, your SIL's number, and medical info that should be obvious. You can even put in words like "traveling with her aunt" and your SIL's name.
I think it might be fun, at age 10, to have your daughter learn to pay at a restaurant including figuring the tip (which should be just as generous as an adult would pay). She could buy breakfast for her aunt and be very adult about it. You can get one of those tip calculator cards if you want. Practice at home or by going out to breakfast a few times yourselves. Give her the cash - which is why I say to go for breakfast, as it's less money all around. She can learn to have money in her wallet that she "ignores" in terms of her own spending money, because it's allocated for something else. Yes, she could lose the money, but i wouldn't be horribly disastrous - but it would be a great feather in her cap and an important life skill she's going to need anyway. Plus you're teaching reciprocity and gratitude.
I think a photo book would be a great idea. Can you give her an inexpensive camera or someone's hand-me-down phone that takes pics?
Updated
You have good answers already on the paperwork.
You could get a bracelet (see Runner ID and similar) that runners wear when they carry no ID. My son and husband both wear them. You can put any info you want on the metal strip that is on the bracelet - her name, DOB, your number, your SIL's number, and medical info that should be obvious. You can even put in words like "traveling with her aunt" and your SIL's name.
I think it might be fun, at age 10, to have your daughter learn to pay at a restaurant including figuring the tip (which should be just as generous as an adult would pay). She could buy breakfast for her aunt and be very adult about it. You can get one of those tip calculator cards if you want. Practice at home or by going out to breakfast a few times yourselves. Give her the cash - which is why I say to go for breakfast, as it's less money all around. She can learn to have money in her wallet that she "ignores" in terms of her own spending money, because it's allocated for something else. Yes, she could lose the money, but i wouldn't be horribly disastrous - but it would be a great feather in her cap and an important life skill she's going to need anyway. Plus you're teaching reciprocity and gratitude.
I think a photo book would be a great idea. Can you give her an inexpensive camera or someone's hand-me-down phone that takes pics?