During my week off I decided to have a big workshop clear out and I found these strange coins in a bag. They're all branded with Taitos name and most have space invaders on them besides 2... Most say 2007 on them, then one says 2004 and the other 1992. Does anyone have any idea what these could be? There really small, probably about the size of a penny (but a lot thicker) I definitely didn't buy them so I imagine I found them in a machine at some point






