What you could do is a slight blue acrylic wash over it and see if that will give more of a blue reflection?
Either way i think it would add that extra detail to have that or just painting those spots.
Hmm..I really want to stay away from using the blues for this. I know what you are saying though. The reason I don't want to use the blues is because I don't feel it "looks right" on a real world prop. I feel the only way I'd ever do blue is if I was able to completly light the hammer up just like the in-game model does.
I saw how the soaring hammer guys did their blue, but it's just not doing it for me :/ Thank you for the suggestion!