DIY Winter Window Bow Insert : Make your own snowman home decor

This Winter inspired window box insert is an amazing craft.
This DIY window box insert comes with the Snowman insert and the hello winter plate.
The insert - 8.3x7.9 inches.
The plate - 9x2.85.
Made with great quality birch wood.
Window box can be found here -
https://www.etsy.com/listing/4467214386/diy-window-interchangeable-shelf-sitter
https://www.etsy.com/listing/4471870050/diy-window-interchangeable-shelf-sitter
I cannot guarantee these inserts will fit in window boxes from other sellers. Because everyone sells different wood that may come in different widths.
All of the wood used in this project is 1/8 inch thick.