Keep them entertained on family beach days with the Liewood Jorn Beach Puzzle. It includes a bucket which can also be used for sandcastles and little animals to fit through the moulds.

Animal shapes in lid
Bucket 16 x 16cm, Cat 3.6 x 4 x 4.4cm, Mr. Bear, 3.6 x 4 x 5.1cm, Rabbit 3.6 x 4 x 4.3cm, Cloud 3.6 x 3.3 x 5.9cm