This is just a PSA because it has helped us out so much, but it's a little counter-intuitive because it's not the usual name-of-kid sticker.
I bought a personalized label pack (I used labeldaddy.com but there are lots of vendors)
On the label, instead of name and phone, I had them print:
IF FOUND, PLEASE CALL OR TEXT (my cell number). THANK YOU!
The reason I had them put *my* cell number instead of my kid's, is because one of these labels goes on your kid's cell phone case, so you have to use a different phone number.
I stuck those labels on her phone, glasses case, backpack, favorite jacket, purse, computer, iPad, that iPad pencil-thing, beats case, EACH credit or debit card, medical card--basically every item in her wallet, and then on the wallet itself--and back of her Driver's License. (I would also do a key ring but it's not applicable in our situation). Anything that leaves the dorm. (I didn't do the following, but also recommend all notebooks/textbooks)
I think I've only received three calls total over the last year, (one being hilarious, a young man found one of the stickers and called the number but it wasn't attached to anything. We had a nice chat though). One time was when she left her phone in one of the dorm cafeterias. I texted her friend who lived on her floor who went and told her, and she got it back right away.
However; today those labels paid off in spades. A guy called me from downtown Chicago with her wallet containing her drivers license and debit card. He volunteered, "Yeah someone gave it to me but I don't want to keep passing it around. Thank goodness it had this sticker on it!"
You know, a happy side effect of using these labels is everyone you talk to is so friendly and wants to help.
Btw this sounds odd but the stickers also ended up on three of her (back home local) friends' phone cases, as they liked the idea (probably because it wasn't *their* moms' number, so they could get the protection but not feel helicoptered)
Anyways today it just saved us from having to get a new drivers license (and not from Illinois) and canceling her debit card, etc. So just want to pass it on.