That's cool. I did the same thing for one, used a baseball bat for a handle. You need a tooth for the end so it bites the log. The other issue you can have is a real cant hook handle tapers down at the tip where the tooth goes. This allows you to grab bigger logs. You could turn the tip of the bat down to get the proper size. You can also use a longer hook but the narrower tip allows you some side movement you don't get with a broad wide tip like I have on my aluminum one linked below. Side movement allows you to grab a log on an angle instead of being more square to it.
Here's a link to some cant hooks I made handles for (one's an aluminum bat too):
Cant hooks