When it comes to a big anniversary like your 25th you will want to celebrate it in style.
You may still be in denial that you have been married for 25 years and be thinking where has the time gone but this is one big celebration you don't want to forget.
The 25th is a biggie and most people will know that this is traditionally celebrated with silver so you may want to have your gift represent that.
Ideas could be:
To be honest you will quite likely receive a number of silver gifts from family and friends, especially if you are having a party so why not have a token silver gift and then give a gift that you know they will truly love;
You could always send him a bouquet of personalized silver anniversary roses to his work if you are not together on the actual day.
You could just send a single rose or maybe even one with a photo on :)
Available from JustPaperRoses