As for ideas, a school themed one is always fun! LOCW would like some crazy scifi magic thing, Jedi would love space, and Evan... He'd go along with anything! (As long as it isn't animal themed for him. I want to spend lots of time on Evan's cat form, but not now.

How would/does/did your sona(s) react to the fact that they have summer homework?
LOCW would do it the first day of summer.
Jedi would use most of it for paper airplanes, then have to find it all again a few days before school restarted.
Evan: Typical. BL
When is/are your sona(s) birthday? How do they celebrate?
LOCW= December 24 (my birthday): Special CS sig, art, I wear LOCW themed jewelry, he visits friends
Jedi=March 25: Special CS sig and he used to have parties before his friends went on hiatus, LOCW would make dinner, I wear partial fursuit parts, my friend made him a card this year
Evan=July 17: Huge party with family an friends, lots of role playing (he shares a birthday with his best friend!), cake, presents, me making references all day