It used to be called "plastic surgery". This was done using Silly Putty.

The itty bitty kitty committee gathers again 1

Chaos incoming 2

Time to nap 3

Shook 4

'Let's open the door and see what happens': Heartwarming Hoomans Share Hissterical Journey on How They Became Proud Pawrents To 9 Furry Felines 5

Being a cat is hard work 6