Disc

I’m not sure what this is but our lad had it on one of his keyrings.  I thought it might be a gaming piece of some sort but Mr Google just brings up mechanical parts.
 
Whatever, it’s 30mm o/d and 15mm i/d, so if anyone has any ideas . . .  ?
 
For the tec minded, 5 frame focus stack/merge in Affinity, and processed in PS.
 
Just got back from this morning’s Biskit walk when the heavens opened.  The sun has made an appearance now, so a quick sandy for lunch, the out to brave the elements.
 
Mrs W has accidentally volunteered macaroni cheese for tonight’s dinner, so an easy afternoon for me, maybe.
 
 
Many thanks to JDO for hosting TinyTuesday this month.