In the Ukraine, there's a legend that a poor widow found a Christmas tree growing in her yard during the summer months. Her children were thrilled to finally have a tree, but she didn't have money to decorate it.
When the family woke up Christmas morning, a spider had spun a web around the tree, decorating it for the family.
When the youngest child opened the window on Christmas day and light hit the web, the web turned to silver and gold.
Stemming from that legend, now people in the Ukraine hide spider webs in their trees and whoever finds it Christmas day will have good luck that year.