Technologies are generally described for hair accessories and methods to make a material for repelling lice. The hair accessories may comprise a lice repellent oil infused within an injection molded plastic material. The infused injection molded plastic material may be in the shape of a hair accessory. The methods to make a material for repelling lice may comprise placing a plastic material into a mixing chamber. The methods may comprise placing a lice repellent oil into the mixing chamber. The methods may comprise mixing the plastic material and the lice repellent oil in the mixing chamber to produce an infused plastic material. The methods may comprise feeding the infused plastic material into a hopper of an injection molding machine. The methods may comprise forming the material for repelling lice by injection molding of the infused plastic material.