Sorry, please pick Canon characters only.

I'll give on Slipstick's behalf.. Madam Hooch, a pocket knife and the owlry

Madame Hooch had had a hard day reffing a 12 hour game. A 1st year boy ran out to the quidditch pitch towards Madame Hooch.
"Madame Hooch, come quick...up to the owlery."
"What is it?" asked Hooch.
"Just come!Qucikly!" said the 1st year.
She followed him up to the owlery and there were hundreds of students and professors.
She opened up a howler, "CONGRATULATIONS!"
In the howler was a small pocket knife she said she lost 75 years ago as a child.
She was overjoyed.
"Congratulations Rolanda on 50 years at Hogwarts," said Albus.
Madame Hooch was thrilled.

I give Harry the sword of Godric Gryffindor and Fawkes

Harry sat in the Chamber of Secrets, alone. He usually came down here to think, but this was a different reason. Everyone had forgotten his birthday, that is why he was down here. He looked around the chamber and caught a glimpse of something moving quickly.

Suddenly, Fawkes appeared before him with a note and the sorting hat.

Happy Birthday Harry! I believe that you should have this. You are after all, a younger Godric. -Dumbledore

He looked at the sorting hat, hoping for something to appear. He saw something glitter and poof! Godric Gryffindor’s sword was there. He smiled.

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SWEET! 100 words exactly! I give Blaise Zabini, a book and Professor Sprout's Greenhouses.