I said I would have a look to see if I could find an example myself ....
Well, what about " sialclais " or perhaps its twin "claisialc" ?
Yes, it really exists ...or did once... read on..
Here's what happened .... all over the world, teachers have got across their subject matter using chalk on blackboards ... yes, even in Wales. Way back in Wrecsam in 1932 an art teacher was fed up with constantly having to change chalks to produce his multicoloured artwork on the board... so he invented "claisialc" ® = striped chalk .... which spread like wildfire throughout the teaching profession all over the world. He also took out a patent on its alternative version , sialclais® just in case ... he never actually made any of it.
He was able to retire only 2 years later and devote himself to establishing claisialc factories all over the civilised world .. and fortunately never lived to see the advent of the whiteboard, and later the interactive whiteboard which would have been the end of his business.
After that revelatory tale, here's that Cara Braia again, this time with Hâf 'di Dod" .....
Mind you , if it was real, surely the name should have been CLAISIALC ... much better.