Mom And Dad`s 25th Wedding Anniversary

My parents are having their 25th wedding anniversary this week. My brother is younger than me and not really "into" it and I will not be back in the US until august , so I can not throw them a party. They were planning on leaving the country for their 25th, but b/c of house renovations, they can`t. I want to send them something or do something just spectacular for them, but my parents already have everything and all I can find on the internet is silver frames and glasses and things of that nature. Any ideas anyone? Please help!