Popular stencils
Swim Lanes
This stencil provides basic structure for diagramming using swim lanes, and split swim lanes to show separation of processes of tasks.
Endian - Network Security & IoT
Network Security and Industrial IoT Security feature Highlights Icons.
Some basic network components
Various network components from various sources, some I've found useful over the years. I'm new to OmniGraffle, missed these items.
AWS Storage Icons
AWS Simple Icons for Architecture Diagrams from http://aws.amazon.com/architecture/icons/ converted to stencils.
Active Directory
Converted some objects from an old Active Directory Visio stencil to a .gstencil to map out AD structure. More can be added if you want to customize it for your specific needs.
AWS Content Delivery Icons
AWS Simple Icons for Architecture Diagrams from http://aws.amazon.com/architecture/icons/ converted to stencils.
Satellites
I needed some satellites for some simple network diagrams. They had to have the appearance of floating in the sky, so perspective was important. I set about creating these in Cinema 4D and dropping them into Omnigraffle.
Quadrant Analysis
Many techniques requires categorising items or ideas into four quadrants. This stencil gives a framework for that type of categorisation.
Toy Building Bricks
We spend all day creating all sorts of things with Graffle; org charts, graphs, maps and more. Somewhere along the way we discovered that in your spare time it can also be used to create a great looking boat, a house, or a spaceship! In the interest of good, clean fun the Toy Building Bricks stencil was born. Download it...more