WTH Apple!? Random coins showing up in old Macbooks!

This is one of the stranger things I've read so far this year. Originally posted on Kotaku:

http://www.kotaku.com.au/2017/01/dear-apple-why-are-people-finding-coins-in-their-macbooks/

One reader suggested that maybe this was Apple's way of indicating that the CD drive had been refurbished. Most companies just use a sticker, but everyone knows that Apple likes to be different, so I wouldn't put this past them!

This may not be hard-hitting news but you have to admit it is pretty weird! :P

I am curious to find out what other theories you may have. Post your ideas in the comments below!