Another plant that I purchased for a work terrarium, three polka-dot plants arrived as three tiny cuttings from a mailorder house in early 2018. They are three different color variants, one whitish, one light pink, and one deep reddish-pink.
The plants ended up in a terrarium and actually grew very happily there. They grow so fast that they end up outside the terrarium, so I clipped them back and take cuttings of the clippings.
Here is a gallery of them.