Five years ago the comic strip Blondie celebrated 75 years of the Bumstead's wedded Bliss, and had a huge crossover party with I think thousands of comic characters. This was before my time, comic strip-wise, so I could only add to the festivities tangentially. This was hard to draw as Blondie is so cleanly rendered, with every curl in place and every curve just so. It made me feel sloppy and hamfisted.
This year will mark their 80th, which is pretty much off the charts as far as traditional gift giving goes. I'd suggest an antique, or something fossilized. But nice!