As has been suggested to me in the Help area, I will make a suggestion that the old coins, such as Special Coin and Silver Coin, be reinstated at the Coin Machine or somewhere else so that they are actually usable. Seems silly that they have no use anymore, yes?

I support them being used in the machine again!

Thumbs up for this suggestion :)

would like to see them in use :)

They either need a function, or their descriptions need changed. Most of them say something like 'can be used in many places', or that they will 'help you purchase things'.