The zoo had earned 300,000 baht (4,309 pounds) a year from selling fans, greeting cards, key chains, book marks -- all with panda faces and made from panda excrement paper -- and dried panda dung, enough to fund the project, he said.

• 班特拉库彭塔威说，该动物园现在每年可从熊猫粪便中获得30万泰铢（4309英镑）的收入，具体的赚钱方式则包括出售由那种“特殊”纸张制成的且印有熊猫头像的各种扇子、贺卡、钥匙链以及书签等，游客们甚至还可以买到干燥后的熊猫粪便。