11 years, 4,018 days 96,432 hours, 5,785,920 minutes, 347,155,200 seconds and still counting. I still do.
If you follow the traditional anniversary gift ideas, 11 years is steel. Steel doesn't seem to bring out a great sense of love or passion unless swords and knives are your spouses thing. So you can chose the very inexpensive price of keychain and the number of days in 11 years brought a nice memory of our wedding day.
Of course, you can add something on the blank side, You could engrave the coordinates of the church we were married in, do a name or a favorite song or place. It's about the memory. Turned into the perfect gift and it comes in a little pouch.