How do you categorize things (say, a toy, doll or idol) made out of natural wastes like leaves, trunks, etc., from nature?
Labeling the use of such materials depends on where and how they were obtained. If they were harvested (taken from living things), then you can label them as made from all-natural materials. If you obtained them from the ground, that is, did not take them from living plants, made from eco-friendly, recycled, all-natural materials or any shortened version.
Labeling something as made from organic materials simply because they were once living matter is deceptive in the US, because organic implies freedom from pesticides or unnatural substances. This precludes things gathered from the roadside, or from areas where any spraying or fertilizing might have taken place in the three-years (or more, depending) prior (in the US).
You can also label either/all as being biodegradable.