Well, I am competitive but I want good competitors hehe
Anyway, you got me thinking, and I was about to go to sleep, it's late night here...
I think you should use something helmet-like for example this
Well I appreciate the sportsman like reply ^_^
I was not familiar with those helms and don't have any. I'm also not sure that I could apply them to my mouser and get the desired effect
But I like the way you are thinking.
I've googled lego mouser and this is the only thing that pops up. Its a nice looking mouser.
But its not very choppy. My current design is kinda of cute like that too.
Other option is to make a mega mouser. I vaguely remember an episode where they made a mega mouser that actually gulped Splinter up in one bite and ran away. Its a lot easier to make something choppy at that scale