Saw those too, and not my bag either. My understanding is the owner Sabini likes to tinker around with brush handles and designs. A limited run apparently.
Trust they will be "limited" by the lack of buyers, or in the alternative by the (repeat "limited") tastes of those that will .. then 20/30/40 years down the road they will be highly sought after because nobody in this life would buy them.
I took the plunge and ordered one on Wednesday (the orange one). Looks nice but as the size says 'small', I'm now curious to see how big the brush actually is...
Why not? A lot of the vintage ever-ready "Marbles" looked similar to this new. There was a thread where someone sanded a green marble one. It was like a milky/neon teal swirl originally.