Disclaimer: I don't own Spock, Star Trek, or any of the Holidays listed below.
Enjoy!
Happy New Spock!
Happy Valenspocks Day!
Happy Saint Spockrick's Day!
Happy Spockster!
Happy Mother's Spock!
Happy Spocker Day!
Happy Indespockence Day!
Happy Spockaween!
Happy Spocksgiving!
Spock Friday!
Happy Spockukkah!
Christmas Spock!
Happy Spockmas!
And Happy Spockidays!
Bonus: Doomspock!
I hope you enjoyed! Thanks for reading! and I hope you have a happy nearly Halla(Spock)ween! (If any of these have validly offended you then I apologize and will put that offense down. I assure you that I only intended this as a silly little list.)