How do I insert the results of a unix command into the tcsh CLI?

I often find myself wanting to create datestamped files and folders.

I'd love to be able to create a folder called "160408-projectA" by typing:

mkdir <ctrl-;>-projectA

I've tried using bindkey -cs '^;' '`date +%y%m%d | perl -pe chomp`'

... but it says "bad key spec ^;". Even switching to another key, e.g. ^o, it errors out with "160408: Command not found.".

Is this possible with tcsh?