こいのぼり koinobori, carp streamers used to celebrate Children’s Day every May 5th.
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.

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

Yarn (Hamanaka Bonny):
17
Baby Blue ベビ—ブル— (439) 10g
Blue ブル— (462) 6g
Natural 生成り (442) 6g
Black 黒 (402) small amount
18
Baby Pink ベビ—ピンク (405) 10g
Red 赤 (429) 6g
Natural 生成り (442) 6g
Black 黒 (402) small amount
19
Young Grass 若草色 (495) 10g
Black 黒 (402) 7g
Natural 生成り (442) small amount