ひし餅 hishi mochi, a Japanese lozenge-shaped rice cake
Wikipedia article

“Tawashi” are various types of scrubbers which could be used to clean dishes, windows, and other household items.

Pattern is Japanese but fully charted using standard crochet symbols.

After making the top and bottom, fill with cotton (or your preferred stuffing) and whip stitch the sides together.

Hook: Japanese size 7.5/0 = 4.5mm, between US G-6 (4.0mm) and US H-8 (5.0mm).

Yarn (Hamanaka Bonny):
Pink ピンク (479) 9g
Young Grass 若草色 (495) 7g
Natural 生成り (442) small amount