This is a computer mouse ---- the input device which helps you select commands and control the cursor on your computer screen. The computer mouse was invented by Douglas Englehart of Stanford University in USA in 1963. It became popular when Apple Computer began to use it with their computers in the 1980s. Since then, different kinds of computer mice were invented. The Frog Mouse shown here is one of the novelty computer mice.
Source of information: Compute magazine (August 1991)