Hello Jeremy and thank you very much for your feedback and consideration. Here you go some other proposals with original shapes, very simple, and less "out-of-the-box" :-) They allow the usage even in small size like favicon and keep the distinctiveness of the shape, since they don't have small details. If we don't speak sooner, wish you and Natalie a great Easter; however, if any sounds promising, I'll be around (may just not answer so fast.
Greetings from Portugal,
Claudia