Maze on a Pumpkin

Help the poor canker to find its way. There are so many options, but only one leads
to the opposite side of the pumpkin. Its size is about 15 - 20 centimeters.

How to make:
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Print all the 20 Triangles. they are numbered as following from left to right :

trimaze_ico_1-5.stl: 1 2 3 4 5
trimaze_ico_6-10.stl: 6 7 8 9 10
trimaze_ico_11-15.stl: 11 12 13 14 15
trimaze_ico_16-20.stl: 16 17 18 19 20

and really make sure that you label them correctly with a pen on the ba