Pretty much everything organic can be composted, but special care should be taken with scraps of meat and suchlike.
Yes, flowers can be composted.
cellophane is a type of plastic and can not be composted
sure, anything that comes from a plant can be composted
Yes, coffee filters can be composted because they are typically made of biodegradable materials like paper.
Yes, potato peels can be composted effectively as they break down quickly and provide nutrients to the soil.
Yes, corn husks can be composted. Composting corn husks can help reduce waste and enrich the soil with nutrients.
Most plastics cannot be composted. There are newly developed plastics that do breakdown over time, but these are not common and would still not be suitable for compost.
Yes, apples can be composted. Composting apples helps to break down the organic material and turn it into nutrient-rich soil for plants.
Yes, brown paper bags can be composted because they are made from natural materials that break down easily in a compost pile.
It is likely that you can get some forms of feces and manure on eBay...for example, you might find an auction for one of these fecal products (many are used in gardening for fertilizer):Guano (high nitrogen feces and urine from bats and some marine animals)Cow manure (a composted product used for gardening)Horse manure (a composted product used for gardening)Llama manure (a composted product used for gardening)Rabbit manure (a composted product used for gardening)Pig manure (a composted product used for gardening)Chicken manure (a composted product used for gardening)Fossilized feces, called coprolites (collected by paleontologists and others)
Composted or fermented grass.
Yes, egg shells can be composted. They need to be crushed into super-small pieces, whose decomposition adds calcium to soil amendments, fertilizers, and mulches.