The following can not be patented:
Information from British Library (no date) What is a patent? Available at: https://www.bl.uk/business-and-ip-centre/articles/what-is-a-patent (Accessed: 22 June 2018).
Detail from US Design Patent 253,711. Design patents are often called "registered designs" in other countries and are registered separately, but in the US designs are part of the patent system.
Christiansen, G.K. (1979) Toy figure. United States Patent and Trademark Office Patent no. Des. 253,711. Available at: http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=D253711 (Accessed: 22 June 2018).