Baby shower Make a sign a table with blank paper note cards for people to write a special letter or birthday message. For 1st birthday ideas could be: when you heard about babys arrival, your first meeting, early impressions, future wishes, a note of blessing, your favorite photograph(s) with comments. Could make a tradition for each year or just do for 1st birthday do a time capsule.
Tape a number 1 on the canvas then let them finger paint to make their first work of art to hang in their bedroom. OR... Tape their age numbers each year and do a smaller version to send to grandparents and family. Maybe even cards, thank you notes, etc.