How to indicate custom (unique features per client) in a UI

I have a (quite big) software, and some features are custom for each client. I want to highlight the fact that those features are handcrafted for them in the menu, but I don't have any idea on how to do that without breaking the whole experience of the app.

TL;DR : I have a 5 buttons for sorting some data, and 2 of them are custom sort algorithms for the company X. Same case with some dropdowns and submenus. How would you make the visual difference, and moreover, how would you make the customer understand that "this is handcrafted for you" ?

Thanks for any help, Tom