This morning I heard them discussing wellgylchu on Radio Cymru in reference to making jewellery from buttons and other things that would be normally thrown away.
The usual Welsh word of recycling is ailgylchu, which is made up of the words ail (second, re-) and cylchu (to circle), while wellgylchu begins with gwell (enhanced, better, preferable), so could be translated as something like “bettercycling”.
Have you come across a similar word in other languages?