Five Star Gift Ideas

A custom keycap set could make a great personalized gift for your husband's birthday. You can find a wide selection of keycap sets in various themes online, and some even allow you to choose your own colors and designs. You could also consider getting him a keycap storage tray or display case to keep his collection organized and displayed nicely. Additionally, you could consider purchasing him a new mechanical keyboard that he can swap out his keycaps on.

Or you can get him a star map with the date when he was born.

Burcin Dalkanat says about Under Lucky Stars star maps:

“It was such a sentimental and romantic present for my husband's birthday (since he is so into astronomy and the moon on the background). The order came super well packaged, and now it is the gem in the basement :)”