I'm wondering if you can help me work through an issue or provide alt ideas.

I have an archive displaying a list of custom tax terms in a grid view. 

My client needs to be able to turn on/off the terms from displaying in the grid. If these were posts this would be easy because I could simply have him check/uncheck a category for the post. However, taxonomies don't have that feature out of the box. 

Does anyone know how I might accomplish this?