Request: Polymerization - Swirl Special Effect Model

Here is a picture of roughly what Id like the effect to look like



It would be used when 2 or more units merge together into a stronger unit.
Here are 2 examples, to give anyone an idea of how it would work

Here we have a Soldier and a Priest


You cast Polymerization on them the swirly special effect appears and the units are merged together creating a Paladin


Here we have a few Undead Ghouls


You cast Polymerization on them the swirly special effect appears and the units are merged together creating an Abomination


These are just examples, I'm working on alot of custom units to combo together.

thank you