A toy, comprising: first cubic blocks, each of the first cubic blocks including: a first recessed space recessed from a first edge to a first center of the respective first cubic block; and a second recessed space recessed from a second edge of the respective first cubic block to the first center, the second edge being perpendicular to and not intercepting the first edge; second cubic blocks, each of the second cubic blocks including: a third recessed space recessed from a third edge to a second center of the respective second cubic block; and a fourth recessed space recessed from a fourth edge of the respective second cubic block to the second center, the fourth edge being perpendicular to and not intercepting the third edge; connectors, each of the connectors connecting one of the first cubic blocks and one of the second cubic blocks; and pivoting shafts, each of the pivoting shafts connecting one of the connectors to one of the first cubic blocks and the second cubic blocks that is configured to rotate around the respective pivoting shaft, wherein a number of the first cubic blocks is four; a number of the second cubic blocks is four; the first cubic blocks and the second cubic blocks are arranged in a staggered manner, the respective first cubic block being connected to two of the second cubic blocks using two of the connectors in the first recessed space and the second recessed space, and the respective second cubic block being connected to two of the first cubic blocks using two of the connectors in the third recessed space and the fourth recessed space; and two of the pivoting shafts, being perpendicular to each other, are disposed in each of the first cubic blocks and the second cubic blocks, the respective first cubic block being configured to rotate around two respective pivoting shafts, and the respective second cubic block being configured to rotate around two respective pivoting shafts. first cubic blocks, each of the first cubic blocks including: a first recessed space recessed from a first edge to a first center of the respective first cubic block; and a second recessed space recessed from a second edge of the respective first cubic block to the first center, the second edge being perpendicular to and not intercepting the first edge; a first recessed space recessed from a first edge to a first center of the respective first cubic block; and a second recessed space recessed from a second edge of the respective first cubic block to the first center, the second edge being perpendicular to and not intercepting the first edge; second cubic blocks, each of the second cubic blocks including: a third recessed space recessed from a third edge to a second center of the respective second cubic block; and a fourth recessed space recessed from a fourth edge of the respective second cubic block to the second center, the fourth edge being perpendicular to and not intercepting the third edge; a third recessed space recessed from a third edge to a second center of the respective second cubic block; and a fourth recessed space recessed from a fourth edge of the respective second cubic block to the second center, the fourth edge being perpendicular to and not intercepting the third edge; connectors, each of the connectors connecting one of the first cubic blocks and one of the second cubic blocks; and pivoting shafts, each of the pivoting shafts connecting one of the connectors to one of the first cubic blocks and the second cubic blocks that is configured to rotate around the respective pivoting shaft, wherein a number of the first cubic blocks is four; a number of the second cubic blocks is four; the first cubic blocks and the second cubic blocks are arranged in a staggered manner, the respective first cubic block being connected to two of the second cubic blocks using two of the connectors in the first recessed space and the second recessed space, and the respective second cubic block being connected to two of the first cubic blocks using two of the connectors in the third recessed space and the fourth recessed space; and two of the pivoting shafts, being perpendicular to each other, are disposed in each of the first cubic blocks and the second cubic blocks, the respective first cubic block being configured to rotate around two respective pivoting shafts, and the respective second cubic block being configured to rotate around two respective pivoting shafts.