No one is going to mock you for wanting to specialize. You will get mocked if you are a tool. You dont seem like a tool, so you are actually being taken seriously.
Consider this. Most everyone who actually applies to OMFS will put in a packet that reads like this: 88 or higher NBDE 1, Top 10 Rank. Bottom line, the stats count. After that, what is going to make you the most competitive applicant? Research or Externships? All things being equal, doing externships (plural) demonstrates a passion for the specialty and are weighted more in your favor. Therefore, pick a school with long breaks so that you can go on externships and study more for NBDE 1. Also, pick a school with an OS program. That way you can get to know the program director and demonstrate your interest in the clinic so that they can write you a killer letter of recommendation. That LOR from someone in the OS community is huge. So do a good job on your externships with that in mind, and get to know your OS people at your school with that in mind as well.
What about research? Do it, it does look good, but a good paper will not cover low stats or lack of externships.
With good stats and some quality externships and good LOR's, you should get some interviews. What about after that? You need to be someone who can fit in with the other residents, who will become your new family for the next few years (day in and day out for 60 + hours a week). In other words, a decent human being who can relate and has passion for OS should match somewhere. That is kinda why we mock tools who think they will do OS, who is going to want to be around THEM all the time for 4 to 6 years? Just my opinions though.
What if your stats are low? Plan on doing a internship at a OMFS program for the year after school. Or you can think about doing the military route, which is much easier to do, especially the army.
I add the caveat here that I am not planning to specialize directly after school, so take what I am saying here with a large grain o' salt. A lot of this information is straight from our schools OMFS director and residents though, so I am pretty sure it is legit.
), what classes you get which semester, etc... I'm assuming that doing some sort of research can only help you, but just echoing what others have said already, make sure you work hard, use your passion as motivation, and don't stop! 
