Hi Lessa,
The short answer is no.
OK, that is out of the way.. :)
Options-
Small chunks? Don't think so, they will end up being awful gummy as they will continue to absorb moisture like an old lifesaver.
Options, put those candycanes back into syrup form and adjust your fave recipe for the syrup. (Hmmmm, it will be a weird color though!)
Peppemint oil? it's a sure thing!
Living on the edge? Color half the batter red and swirl that sucker!
I would do a candycane tuile or a sleigh, christmas tree rather than use any hard candy at all. Just pipe the stripes.
Well that's just the two cents of an old Army cook...
Right after I hit the post button I thought about a chocolate painted mint leaf garnish, or a chiffonade of mint leaves, in the batter, if you let it sit long enough to let the flavor out.
Ok, enough already. :o