That's the candle holder jar I made today and actually my only first seasonal decoration this year...
I collected leaves, pressed them (for 3 weeks, I kinda forget about them)
Then I used "Serviettenlack-und Kleber" from marabu which in English might be Mod Podge (?) and a brush and glued the leaves on the jar, properly painting under and over the leaves.
Let it dry and put in a candle.