We gave a coin minted for each year of birth. We did quarters, but that was about 20 years ago. I would probably use pennies, nickels or dimes now. It took some time searching for the years, but was fun--my daughters did it--we gave him a coin each day before his birthday.
We also did this another year for his dad, and gave it to him all at once, as a one day gift. His dad then took my mother-in-law out to eat with the money.
Both of these years, they were surprised that we were able to find coins for each birth year. We were, too!
We also have given different things on each day before the birthday--which is what I think you want to do.
Another idea-- a newspaper (front page) printed on the day of birth, could even do one for each year. I did this for a sister who is a history nut. She loved it. I found the prints on the internet--archives from your local newspaper.
We also did the marbles--a marble for each year, since as we get older, we tend to lose them sometimes . . . .of course, he needs a sense of humor . . . .
We put a twig of firewood in a basket every day for 60 (that year he was 60)days, then on his birthday, had a "bonfire" in the fireplace to commemorate the occasion. Roasted marshmellows .. .September is still pretty warm--burn it in the grill.
These were inexpensive and fun, hope it helps you think of ways to celebrate your husband's great day.
C.