A bunch of random Pogs. These bear a striking resemblance to ones released in the USA. However, they are notched for some reason. Were you supposed to construct things with them? Also note that Tails is missing from this collection. They are by "Frog ***". No idea on the country.

It is likely that they say "Frog Mania", but it is not confirmed. Hopefully the origin will be discovered. Info by Sonichedgehogchr