Of course you have.
That's what happened to me when I saw these most amazing gingerbread houses by Megan over at Not Martha: http://www.notmartha.org/archives/2009/12/18/a-gingerbread-house-that-perches...
The woman is amazing. She single-handedly inspired my recent gingerbread frenzy. I won't say that there wasn't tears when I realized that we were out of eggs (this is after leaving all the ingredients locked in my office at work) and I can't say that they looked anything like Megan's. But they were delicious and I did get to serve them to a small army of appreciative gingerbread lovers.
There is something seriously strange going on with American mug sizes because even though I used Megan's pattern to cut my cookie constructables, and they didn't expand much during cooking, the houses were waaaaay to big for little old Australian mugs. No one minded.
Try it out yourself- if you dare.