Congrats on your new puppy he is SO cute
I am sure that you are going to just love having a Yorkie in the house as they are just wonderful little guys
I too would recommend that you not give your little one rawhide. My girl was given rawhide before I realized that there can be some dental issues with Yorkies. I have actually just made arrangements for her to have her teeth cleaned as there are two areas that I found with very hard "chunks" in her back teeth. The vet also believes as I do that these are from rawhide bones. Even with brushing her teeth every second day I still missed these somehow and its costly to have teeth cleaned professionally
One of the biggest health concerns with Yorkies is dental health. I would also suggest that you get your little one used to having his teeth brushed. I use special gloves with brush like finger tips and a dense enzyme paste which is a little pricey but works very well.
I agree the Nylabones are great and they dont break apart. I just joined YT myself and this is a fantastic place to get advice and learn all about your little guy. The folks here are terrific and super helpful