Gosh, so excitable. Vinnie blinked a little before muttering, "It's not much, just..." Well, maybe he should show her. He unfurled his hand, revealing the smooth stone in his palm. Though it was only modestly sized, there was a gleam in its core very much resembled the warmth of sunbeams through a veil of verdant leaves. Vinnie extended it towards her, indicating for the oh-so-eager Celebi to take it.

As for the why, everyone always seemed very confused about his take on birthdays, so he probably had to explain. You know, just trying to pretend like it wasn't as big a deal as it really was to him.

"I like bein' able t'thank family on my birthday, so... I grew this for you." Just connect the dots on what was unsaid.