I have in the past made special 'hampers' up for both silver and gold wedding anniversaries...
These have included lots of items - in the relevant colour, for example:
A packet of gold foil-wrapped teabags, Terry's All-Gold Chocolates, Photo Frame, Pens, even a metallic washing up sponge, a box of pretty notelets with gold envelopes (perfect for writing Thank You notes for other anniversary gifts received) Vouchers etc.
All the items were tastefully packaged in a handmade gold-coloured hamper box. I also included a Poem I had written about the couple.
The present showed that I had put thought into each item, making sure I bought them items I knew they would use and that I had also spent some time gathering all the little gifts together, purchasing things when I came across anything I thought would be useful to or appreciated by them.