In the examples used,

“Source” is a face and

“Target” is a piercing

How to use

• Object mode
  • Uses the Target origin(object center) if transforms are NOT applied
  • Uses the Target average vertex position if transforms are applied
  • Get’s the closest face on source
• Edit mode
  • Select a face on the Source object to act as the glue point

Join objects

Joins Target with Source when finished

Align rotation

Rotates Target to align with face for each blend-shape

<aside> 💡 “Rotation seed” is which edge of the face to use when calculating the rotation

</aside>

Mirrored targets

• Delete mirrored side of target
• Turn ”Join objects” off
• Run Glue to shapekeys
• Add mirror modifier on target
• Apply mirror modifier