Treasure hunt

 My mom likes swimming. In winter. When it's cold.

So while she did what she liked, I took my time to go treasure hunting.

I didn't expect to find anything considering the season but to my surprise, I found a few things of debetable worth. Feast your eyes upon the One Ring(s) of our forests:

 

May I add, it is a fairly rare sight to find three different kind of materials - tin, plastic and paper - in one place. I would've expected to find only plastic but, as I did some research before my adventure, the moon phase was placed exceptionally lucky and I was gifted with these findings of plasticus vulgaris, plumbum indomitus and biblus redomo.