I think it's clear I spent way too long doing this

[sniffnoy]

The Jellyfish of Pass-Equivalence

     ---------------------------------
    /                                 \
   /                                   \
   |                                   |
   \       /-\      /-\      /-\       /
    \      \  \     \ /     /  /      /
     \      \  \     X     /  /      /
      \      \  \   / \   /  /      /
       \      \  \ /   \ /  /      /
        \      \  X     X  /      /
         \      \/ \   / \/      /
          \     /\  \ /  /\     /
           \   /  \  X  /  \   /
            \ /    |/ \|    \ /
             X     |   |     X
            / \   /|   |\   / \
           /   \ / |   | \ /   \
          /     X  |   |  X     \
         /     / \ |   | / \     \
        /     /  | |   | |  \     \
       /     /   | |   | |   \     \
      /     /    | |   | |    \     \
     /     /     | |   | |     \     \
    /     /      | |   | |      \     \
    |     |      / |   | \      |     |
    |     |     /  |   |  \     |     |
    |     |    /   |   |   \    |     |
    |     \   /    |   |    \   /     |
    |      \-/     |   |     \-/      |
    \              /   \              /
     \------------/     \------------/