Promise ring for him ?

Me and my boyfriend have been together for almost 2 years and i love him....I have a promise ring that he gave me on Christmas because we just arent ready to be engaged we want to get our career and lives set before we take that big step and say were "Engaged" anyway i wanted to get something for him but not a "Promise ring" maybe a chain ? Or a watch or somthing he can wear like i wear my promise ring.....Any ideas ? 
I know alot of women are gonna say why do u have a ring if your not engaged or somthing they always find to say about something 🙄 but im not here for that lol i just want ideas....
thanks 😘