Stop signals from entering or escaping with this faraday box. Usually sold for $20 USD, you can now 3D print one specifically for your needs, meeting your standards, using materials you trust.
There are two versions of this product: stylish and functional.
The functional version has zero styling, and purely to get the job done. This should be used as a base to create your own variants.
The stylish variant is an opinionated version which is non-free and is a consumer product. It is functionally equivalent to the functional version and offers no extra features. You can inquiry about it at https://kolofe.com if you wish.