Kokutaku breeds rubbers a lot.

[igorponger]

https://m.aliexpress.ru/item/1005005368118370.html?sku_id=12000032764180857&spm=a2g2x.stores.seller_list.12.4b2f3c96L24JFc

A lot of novelty rubbers by KOKUTAKU/ TULPE have emerged recently. Some combined with a middle thick sponge 2.0 mm, what I like most of any others.