I get coin counter rejects every once in a while and I found a few steel pennies and a bunch of foreign coins. I don't collect foreign coins but two stood out to me this time, I have no idea what the square one is. The color maple was cool so I kept it. Otherwise I only found the 1943 S steel penny I liked.
The square coin is from the Netherlands Antilles, a former grouping of the Dutch-controlled islands in the Caribbean. KM# 13.