Don't tell me you never use these :
1) plastics
like commercial shopping bags, contain chemicals often referred to as “slip agents” derived from the stearic acid in animal fat. They essentially prevent the polymers from sticking to metals during manufacturing and clinging to each other afterward. Some bike tires also contain these elements.
2) sugar :
The refining processes for both white and brown sugar often use bone char, a granular material from animal ashes. It gives sugar its white color.
3) orange juices ( some )
Many companies now supplement orange juice with Omega-3 fatty acids, found in fish. Such ingredients are broadly defined as “neutraceuticals,” or food-derived additives that are meant to increase consumer health.
4) Swine
Swine by-products are also important parts of products such as water filters, insulation, rubber, antifreeze, certain plastics, floor waxes, crayons, chalk, adhesives and fertilizer (USDA, 2012). Lard is fat from pig abdomens and is used in shaving creams, soaps, make-up, baked goods and other foods.
5) sheep :
Other than meat, wool is one of the most commonly known products from sheep. Wool is sheep hair that is shaved off during hot weather. After processing, wool can be made into lots of different things, such as shirts, socks, yarn for knitting and tennis ball covers. Wool is also used as an oil absorbent in oil spills.