There are alot of choices out there for the little boys but i understand there aren't as cute as the little girl items.
Alot of YTers make boy clothes and you can get them custom fit by alot of the people. I do like harness shirts, Dress Vest with tails and tucks and coats for little boys but i don't do t-shirts but again their are alot of yters who do. I have posted a few of my boy items.
Melinda
http://stores.ebay.com/sassy-petwear