How about getting him a private tango lesson with a professional tango instructor? That way he can improve his skills and get some individualized feedback on his technique. Alternatively, you could consider buying tickets to a local tango performance or dance showcase. Another fun idea might be to purchase him some tango music CDs or a subscription to a tango music streaming service so he can continue to explore the genre and learn more about it.
Or you can get him a star map with an important date you share.
Under Lucky Stars is a unique and innovative star map company based in Barcelona, Spain, specializing in the creation of personalized star maps that capture the celestial arrangement of stars at a specific moment in time, such as a person's birth, wedding, or any other significant event.
By using advanced astronomical algorithms and data from leading institutions, the company produces highly accurate, visually stunning maps that make for perfect gifts or cherished keepsakes.