Hello Kirsty,
My submission for your review. I've chosen a diamond shape to reflect the properties of laminate glass.
Design #22 #23 represent the strength and durability and process of your product
Designs #24 #25 is an interesting mark that would look good etched into any product line and re-enforces the company identity.
I am looking forward to your comments, ideas and any design change you would like to see.
Scott