Imapreciouspup.com has some super cute boy things.. I will for sure be buying some for my guy.
Barkin dog clothes also has some things you can have custom made in boy-ish fabrics. I had some super cute little t-shirts made for Tuffy and they were very boy looking. As for bows, my guy doesn't wear them because he hates them and I hate people calling him a girl.. but I've never been against it! Though, if you don't want people to think he's a girl, ditch the bows.
