Steal away :-) Here are some more fun ones.

Scrabble board cookie with piped letters weaving together holiday words.
Or make all the little scrabble tiles also with the letters piped on.
Play scrabble. :-)

A maze cookie.

Frost a giant snowflake.

You could also color some dough and roll bits and pieces on top of
rolled plain dough for some interesting experimentation with a stained
glass look-coat with a very thin hardening style icing for the see-thru
effect.

A giant cookie assembled from small cookies for one of those advent
calendars-eat a cookie each day :-)

Keep 'em coming-Grinches not wanted.