AWS stencils for use within OmniGraffle...
I drop these into the OmniGraffle stencils directory, which for me is in:
cd /Users/${USER}/Library/Containers/com.omnigroup.OmniGraffle7/Data/Library/Application\ Support/The\ Omni\ Group/OmniGraffle/Stencils/AWS
These stencils were created using OmniGraffle-Stencil.