Vegans do not use any form of animal product for any reason. In the food category, this means foods such as honey, eggs, dairy and any other animal-produced food are prohibited.
Vegans do not wear or use animal skins for any reason - no fur, no leather, no wool, etc. This includes items such as purses, wallets, clothes, coats, shoes, or anything else they use or wear.
To a vegan, anything animal affiliated is taboo.