Just find out what they really want, and buy them of you can aford it.. that way you can be 100% sure that they will like your present... ( a nice family car would be nice ) ..
I will suggest you to book a GOA bitch resort honeymoon package for him but I think it will cost around between 15-20K other than that you can buy him a cell phone.. Touch screen phones are nowadays available in this range.
Besides any household items you can give them honeymoon tickets (package) so they remember you always. Its really good idea IMO. DON.
mybe u can give him a phone that can make a video call..so if he miss his wife or ur family..just dial n yaehh..can chat online n see ur cute face...hikss
You can gift him a Lcd tv or get two love hearted rings for couples and ask each of them to put on others finger. Or you can get them a honey moon tickets including all packages.
Buy them playstation! or Wii , best way to relax and if they have problems thy can figure them out during the box fight
send them to a near by place to their place some resort or some place where they can be alone for 2-3 days and make full arrangement for them with few surprises!this is the best gift and you can afford it!
Or you can invite their favourite inger, dancers...magicians to their wedding for performance. I think that would be something they will rememmber