How can I create good diagrams for my infrastructure architecture based on DigitalOcean products?

I build interesting applications using best practices in infra architecture and would love to be able to write/blog about them. However, I lack the tools to be able to create good architecture diagrams for all the different configurations I create using DigitalOcean products. Does someone have a collection of graphics I could use for this purpose?

This would also make it easy for people to ask their questions on this forum about their specific use cases. A picture speaks louder than a thousand words, so they can easily articulate their current architecture and problems using a diagram.