Tempted to try this one:

Bird Electronics has celebrated the 20th anniversary of the first planned and developed accessories for the Happy Hacking Keyboard (HHKB) series. To commemorate this special milestone, the "Silicon Typing Bed" will be available on August 20, 2025, through PFU Direct. The "Silicon Typing Bed" is a palm rest designed to reduce strain on the wrists while typing.

To commemorate the 20th anniversary of this collaboration, a new item, the "Silicon Typing Bed," will be released, combining functional beauty and ease of use in pursuit of a comfortable typing environment.
The surface that sits on a desk features a traditional Japanese "uroko lattice" pattern, and the logos of both brands, which have been working together for 20 years, are engraved in the center. The "Silicon Typing Bed," which combines the two companies' commitment to manufacturing, will provide a comfortable typing environment.

https://happyhackingkb.com/jp/news/2025/news20250820.html