The Wool Ball Hybrid Humidifier can even be used as a toy for your pet. This piece isn't actually a toy, but a hybrid energy humidifier which is super eco-friendly.
Designed by Chinese student Yuan Gu, the hybrid humidifier can be used in two ways: Standard and Hybrid mode. In standard mode, the humidifier uses energy from normal electric sources. In hybrid mode, the wool ball gets energy from an integrated battery which can be recharged by rolling it.