You totally could. With my family we started to do cinnamon rolls on our birthdays. And for my kids so far we have taken them to build a bear to do the birthday bear thing
I picked a card out with a 1 on it for this year, wrote his favorite things currently in it, his big milestones, a special message, a photo of us from birth and a photo from his cake smash photoshoot and put a $20 bill in it. Sealed it up for him to open on his 18th or 21st birthday, which ever he will appreciate the cards to open!
I just did a cute happy birthday cake, with a couple toy gifts. She loved it