AWS CloudFormation now supports StackSets Resource Type in the CloudFormation Registry
AWS CloudFormation has expanded the CloudFormation Registry to include the StackSets resource type. StackSets is a CloudFormation feature that allows you to centrally manage deployment of cloud resources to multiple AWS accounts and regions in a single operation. You can now model, provision, and manage your stack sets resources alongside other AWS resources through CloudFormation in a predictable and reliable way.
Source:: Amazon AWS