The Sikki grass craft of Bihar is often used to make:

Paintings
Sculptures
Baskets
Jewelry

The correct answer is: Baskets.

Sikki grass is a type of grass that is found in the state of Bihar in India. It is a long, thin grass that is often used to make baskets. The baskets are made by weaving the grass together in a variety of patterns. They can be used for a variety of purposes, such as carrying food, water, and other items.

The Sikki grass craft is a traditional craft that has been passed down for generations. It is a skill that is often taught to children at a young age. The baskets are made by hand, and each one is unique. They are a beautiful and practical addition to any home.

The other options are incorrect because they are not typically made from Sikki grass. Paintings are typically made from canvas or wood, sculptures are typically made from stone or metal, and jewelry is typically made from gold, silver, or other metals.