Snow Sculptures

Snow sculptures (雪像) are sculptures formed from snow. A common type of snow sculpture is a snowman (雪だるま). Certain snow sculptures in the series have been given names and other attributes.

List of Snow Sculptures
These four snow sculptures received an entry in Vivre Card - One Piece Visual Dictionary.

Snowman-san
Snowman-san (雪だるさん) was a snowman created by Monkey D. Luffy aboard the Going Merry on the voyage to Whisky Peak. It had a body consisting of two spheres, sticks acting as its arms and a nose, a cape, and a barrel on its head. It was destroyed by Usopp in retaliation for Luffy ruining his snow sculpture. Its birthday was February 18.

Techniques

 * Yukidaru Punch (雪だるパンチ): A technique where Luffy hits one of the sticks acting as the snowman's arms, causing it to fly out and "punch" a target. It was first used to destroy the Snow Queen's head.

Snow Queen
The Snow Queen (スノウクイーン) was a snow sculpture of a woman created by Usopp at the same time Luffy created Snowman-san. The woman was depicted sitting on a chair, dressed in a knee-length robe, and bore resemblance to Kaya. The sculpture's head was destroyed by Snowman-san's "Yukidaru Punch". Its birthday was February 18.

Hyper Snowman-san
Hyper Snowman-san (ハイパー雪だるさん) was a much larger version of Snowman-san created by Luffy in the town of Bighorn on Drum Island. It was destroyed by Sanji who was angry that Luffy and Usopp were playing around at a critical time.

Shirora
Shirora (シロラー) was a snow monster created by Usopp. It resembled a dinosaur standing on two legs and was comparable in size to Luffy's Hyper Snowman-san. It was also destroyed by Sanji.