I value sincerity, so I would really like something handmade. Otherwise, I prefer things which are practical for daily usage.
It depends on what your husband likes. If he likes golf, you could buy him a new golf set or something which he likes.
In general, men are really simple. A nice night out away from the kids along with a staycation at a nice hotel would make for a really memorable and eventful anniversary.
I like Tao's which has an affordable set course dinner and Aoki, which has a very private and quiet dining atmosphere and isn't too costly.
http://www.aoki-restaurant.com.sg/
http://www.hungrygowhere.com/singapore/tao-s-restaurant-chinatown/