Here's a selection of 4 of my favorite versions of the 
Haeckel Sphere puzzle.  Each variation has a cute name and a pleasing color scheme that helps keep the pieces from getting mixed up with each other.
					
					Every piece is identical.
|  | color 1 | color 2 | color 3 | color 4 | color 5 | 
|---|
| piece 1 | 1 | 2 | 1 | 2 | 1 | 
| piece 2 | 1 | 2 | 1 | 2 | 1 | 
| piece 3 | 1 | 2 | 1 | 2 | 1 | 
| piece 4 | 1 | 2 | 1 | 2 | 1 | 
| piece 5 | 1 | 2 | 1 | 2 | 1 | 
| piece 6 | 1 | 2 | 1 | 2 | 1 | 
| piece 7 | 1 | 2 | 1 | 2 | 1 | 
| piece 8 | 1 | 2 | 1 | 2 | 1 | 
| piece 9 | 1 | 2 | 1 | 2 | 1 | 
| piece 10 | 1 | 2 | 1 | 2 | 1 | 
| piece 11 | 1 | 2 | 1 | 2 | 1 | 
| piece 12 | 1 | 2 | 1 | 2 | 1 | 
559
613
design
2-color checkered Haeckel Sphere
2-color checkered Haeckel Sphere
73
Lee Krasnow
2024
					 
					
					
					3 types of pieces, 4 of each.
For each of the 5 symmetrical solutions, the position of each color relative the the other ones has predetermined chirality.
|  | color 1 | color 2 | color 3 | color 4 | color 5 | 
|---|
| piece 1 | 1 | 1 | 1 | 2 | 2 | 
| piece 2 | 1 | 1 | 1 | 2 | 2 | 
| piece 3 | 1 | 1 | 1 | 2 | 2 | 
| piece 4 | 1 | 1 | 1 | 2 | 2 | 
| piece 5 | 2 | 2 | 2 | 3 | 3 | 
| piece 6 | 2 | 2 | 2 | 3 | 3 | 
| piece 7 | 2 | 2 | 2 | 3 | 3 | 
| piece 8 | 2 | 2 | 2 | 3 | 3 | 
| piece 9 | 3 | 3 | 3 | 1 | 1 | 
| piece 10 | 3 | 3 | 3 | 1 | 1 | 
| piece 11 | 3 | 3 | 3 | 1 | 1 | 
| piece 12 | 3 | 3 | 3 | 1 | 1 | 
560
613
design
3-color Haeckel Sphere
3-color Haeckel Sphere
73
Lee Krasnow
2024
					 
					
					
					12 dissimilar pieces with a logical coloring system.
There are chiral pairs possible for each of the 5 symmetrical solutions, so that make 10 solutions total.
|  | color 1 | color 2 | color 3 | color 4 | color 5 | 
|---|
| piece 1 | 1 | 1 | 1 | 2 | 2 | 
| piece 2 | 1 | 1 | 1 | 3 | 3 | 
| piece 3 | 1 | 1 | 1 | 4 | 4 | 
| piece 4 | 2 | 2 | 2 | 1 | 1 | 
| piece 5 | 2 | 2 | 2 | 3 | 3 | 
| piece 6 | 2 | 2 | 2 | 4 | 4 | 
| piece 7 | 3 | 3 | 3 | 1 | 1 | 
| piece 8 | 3 | 3 | 3 | 2 | 2 | 
| piece 9 | 3 | 3 | 3 | 4 | 4 | 
| piece 10 | 4 | 4 | 4 | 1 | 1 | 
| piece 11 | 4 | 4 | 4 | 2 | 2 | 
| piece 12 | 4 | 4 | 4 | 3 | 3 | 
561
613
design
4-color tetrahedral Haeckel Sphere
4-color tetrahedral Haeckel Sphere
73
Lee Krasnow
2024
					 
					
					
					12 dissimilar pieces with a logical coloring system.
There are chiral pairs possible for each of the 5 symmetrical solutions, so that make 10 solutions total.
|  | color 1 | color 2 | color 3 | color 4 | color 5 | 
|---|
| piece 1 | 1 | 2 | 1 | 2 | 3 | 
| piece 2 | 1 | 2 | 1 | 2 | 4 | 
| piece 3 | 1 | 2 | 1 | 2 | 5 | 
| piece 4 | 1 | 3 | 1 | 3 | 2 | 
| piece 5 | 1 | 3 | 1 | 3 | 4 | 
| piece 6 | 1 | 3 | 1 | 3 | 5 | 
| piece 7 | 1 | 4 | 1 | 4 | 2 | 
| piece 8 | 1 | 4 | 1 | 4 | 3 | 
| piece 9 | 1 | 4 | 1 | 4 | 5 | 
| piece 10 | 1 | 5 | 1 | 5 | 2 | 
| piece 11 | 1 | 5 | 1 | 5 | 3 | 
| piece 12 | 1 | 5 | 1 | 5 | 4 | 
562
613
design
5-color checkered Haeckel Sphere
5-color checkered Haeckel Sphere
73
Lee Krasnow
2024