Heraldry was pretty design-trendy a while back, but like most trends/fads it was pretty shallow. Pretty! And shallow. But the worldbuilding nerd in me wanted to make some designs that actually had some research behind them so I could use them for story. Blazon, the hardest part (hard=interesting I’m so predictable bleh), is the most interesting to me since the designs have to be reproduceable reliably through their written descriptions.
Have several of these, using them to learn inkscape. This one is for the United Houses of Applied Thaumantic Radiology (ahem). Described as:
A kite, gyronny of twelve, murrey and tenne with an orle argent; overall a five-toothed cogwheel Or, on a rondel azure.
I had a great deal of fun with this when I was in high school. I inherited a few old heraldry books from my granddad - I was allowed to pick any books from his library and I chose two on heraldry. I made heraldry for the animal families of the fantasy world I’d created for them, and wrote out blazon and everything. Great fun. Language of all kind is pretty cool.