Every part has it's own.
I've found out that the body's is May 20th so this is my date
Vlad is on the 21st of May
Waidth is on 31st of October
Cari is on 16th of June
Evee is on 1st of May
Annie is on 6th of February
And we usually buy and hide a present for all, especially for the littles, and we make mini parties for everyone especially since Waidth and Evee are on Pagan holidays and we are all Pagans so it's the double celebration then (Waidth is "born" at New Year so yeah can imagine for what kind of celebration we are talking here) It's our own little traditions we cook food for that person and so on.