These are coasters with dots.......but are they doing the polka?
I wondered about that so I consulted wikipedia...
this is what I found out:
Etymology[edit]
Look up polka dot in Wiktionary, the free dictionary. |
The pattern shares its name with the dance form, making one suspect there is a connection linking the pattern to the dance. However, the name was likely settled upon merely because of the dance's popularity at the time the pattern became fashionable, just as many other products and fashions of the era also adopted the polka name. [1]