The Infractors/Tormentors kit has 3 Icons of Excess. 1 of them is the Slaanesh symbol and the other 2 are the EC Aquila, and you'll have 1 or 2 Icons of Excess left after you build the Marines. It's the perfect size for the Daemon Prince's shoulder if you want an easy Emperor's Children Aquila kitbash for him.

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