This is a set of cigarette cards that my Dad gave me when I was about ten. Each card forms a third of an animal and I used to have great fun playing with them and creating all sorts of chimeras.
Animalloys: an un-natural history series
W.D. & H.O. Wills
From the back of the cards:
This card shows a section of a well-known animal, the sections needed to complete the animal appearing on two other cards. The complete series comprises 16 animals, each in three sections, and by mixing the sections you can produce a large number of strange creatures with amusing names.