I know this song as The Gift, and here are the lyrics I learned at camp:

I have a little present here for you
Inside this tiny bottle, so very small and blue.
Please do not uncork it, simply put it on away.
For inside there lies a summer's day.
Put it on away…

Now I'd be pleased if you didn't ask
Why I'd give this gift to you
I don't know myself, did it on a whim
As the thought came running through
Just want to make you happy in a summertime sort of way
And I thought you might like your own summer's day.
Put it on away…
Can you read the writing on this tiny bottle's wall
I know it is quite small
But I can read it all
It says she who is a-reading me
Is looking right at my side
And might be sort of interested
In what lies inside
There'll be one breath of a butterfly and one ray from the sun
And lots and lots of laughter from little children's fun
So don't you dare uncork it, 'cause everything will get away
And I want you to have your own summer's day.
Put it on away…