Don't be put off by the language barrier -- this has a zillion Christmas decorating craft ideas. It's not a "how-to-guide," but a collection of simple, pretty decorations -- like this simple star. I picture it in craft paper and maybe a hint of glitter.
vintage paper trees made from a half circle. would be so cute on canvas art, as garland or on packages or cards. Picture only but would be easy, just fold half circle back and forth on itself. Add ribbon or more paper for trunk.