GNS3 custom symbols: You can use your own 3d GNS3 icons in your GNS3 topologies. Make your GNS3 topologies look like Cisco presentations (or other vendors).
Cisco Icons / Symbols / Photos: https://bx.cisco.com/cbx-portal/
GNS3 Custom 3D Symbols and Templates like Cisco icons: CCNA | Python | Networking
