Yura-Yura Clip Collection (Full Title: ゆらゆらクリップコレクション) is a set of clips released by Sol International in September 2010.
They're sold as a full complete box of 12 for 6300円 ($84), making the individual clips worth 525円 ($7) each.
Yurayura is a term for a swaying, rocking, or wobbling motion. By being attached to the top of a large clip (50mm), the charms (35mm) do just as their name suggests when clipped to something.
A slightly rarer art set, these metal charms are made with the same images as the fabric buttons.
The characters in this collection are N. Italy, Germany, Japan, America, England, France, Russia, China, Austria, Switzerland, Liechtenstein and Greece.