New Sonos Play Accessories

Sonos currently doesn’t sell one, but I wouldn’t be surprised if there wasn’t one found by doing a web search, not from Sonos.

Unfortunately, Sonos usually announces items just as they’re about to be released, so we’re unlikely to know about any future items. If a web search doesn’t turn anything up, I’d be keeping my eyes on Sanus and Flexson sites, but Amazon is a pretty good resource, especially for Chinese made items. 

The store showing Play compatible accessories doesn't have much

https://www.sonos.com/en-us/shop/accessories?filterTokenSetProductCompatibility=sonos-play&priceMin=9&priceMax=749

Calling sales might find other items.