That was a good idea. We all know yorkies are popular and dishonest people will jump at the chance at getting a "free" yorkie, especially one that isn't fixed.
PLEASE don't waste your money on any belly bands from PetSmart/PetCo. I bought one in a pinch and it was a waste of $16.99. The only kind I've seen at those stores are one size fits all for small breeds, and have elastic all the way around. Our furbutts are smarter than we think, and can easily take those off. Trust me on this. Kaji sometimes acts like he isn't the brightest bulb in the pack, but the belly band with the elastic was super easy for him to take off. It didn't last two seconds on him. Anything you buy from a YT vendor will not only be cheaper, but better fit and quality. I'm serious when I tell you you're better off tying an over sized tube sock around his midsection.
In fact, I have one that you could have for this little guy. It is used, washed and the most adjustable one I have. PM me his size so I can make sure this one will fit him, and I'll send it to you tomorrow.... which is today. (I can't sleep) I have three, and since Kaji kicked the marking habit, I only use them when we travel or visit new people that have pets. I can live with 2.
