Polysticks, sometimes also known as polyedges, are polyforms obtained from the edges of a regular grid.
Square polysticks are polyforms obtained from the edges of a regular square grid, illustrated above.
The numbers of square polysticks with 
, 2, ... components are 1, 2, 5, 16, 55, 222, 950, 4265,
... (OEIS A019988), the first few of which
are illustrated above.
Triangular polysticks are polyforms obtained from the edges of a regular triangular grid, illustrated above.
The numbers of triangular polysticks with 
, 2, ... components are 1, 3, 12, 60, 375, 2613, 19074, 14366,
... (OEIS A159867), the first few of which
are illustrated above.
