OC Cutie Mark Design Suggestions...

[Sunrise Starshine]

In anticipation of LoE, and just for fun, I'd like to design an OC cutie mark for myself! The problem I'm running into is that I am an architecture student, so I'd like there to be some suggestion of that in the design, but the only iconic imagery I can think of would be a triangle and compass which...also are symbolic of Freemasonry, which I'm not meaning to suggest.

So my question for you is, what would be an iconic item or image that would make you think "Oh, architectural design!" without being as literal as, say, a building?    Could I use the traditional imagery without going too far into Da Vinci Code territory?

[blobking156]

Maybe a blueprint with some sort of building on it?