What I Found And Kept:
The coolest thing that I ever found and kept was broken sea glass. It was like a precious treasure to me, and I wrote a poem about it many years ago, and you can read it here. https://wp.me/p6GQXv-1V (Broken Sea Glass.) God also used it to teach me a lesson, which you will see from the link.
Apart from the Broken Sea Glass, the other coolest thing I found and kept is the Word of God.
The Parable of the Hidden Treasure
“Again, the kingdom of heaven is like treasure hidden in a field, which a man found and hid; and for joy over it, he goes and sells all that he has and buys that field. Matthew 13:44
I hold on to God’s Word as I would a treasure, and I am strengthened by it.