Gashapon is the craze that originated among the toy and anime crazy communities of Japan (and then trickled down the rest of South East Asia) where little plastic figurines of Japanese anime characters such as Naruto and Dragonball reside in tiny capsules, sold in a vending machine as commonly found as phone booths.
Its name is interestingly derived from Japanese onomatopoeia, from two sounds - gacha (the sound of the turning of the crank on the vending machine) and pon (the sound of the capsule falling into the receptible of the vending machine). It is also referred to as "trading toy".