I found this set on Etsy in a shop called Blue Moon Hoodoo. At the time I found it they were selling both a 27 piece set and a 35 piece set. I bought the 35 piece set. When I last checked there were no more sets, so I don’t know if they are temporarily or permanently out of stock.
Blue Moon Hoodoo Etsy Shop 35 Piece Bone Set.
Happy Bone Reading!