I just added a new "inspirational" image in the project brief. I mentioned that we were interested (as a "nice to have") in a puppy as a mascot-style character. This image of "Taco" the trello.com mascot is an example of a cartoon-like character. If you could do something like this where the puppy is holding a tool or blueprint in its mouth, we think that may work.

Thanks for your submissions.