I remember getting ink slung all over me by a faulty mimeo machine. Yuck! And it didn't come out, either.
We always had one of these to sprinkle the clothes with prior to ironing.
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Mention church key to a young person and they probably think you are going to unlock the church door.
And the hose that rang inside the station to alert attendant.
Etch-a-Scetch is still around. I bought one for Collin. He loved it.