The following pictures show the sewing of a three-holed torus. Maybe you prefer a description of the sewing-process with less pictures.
Identify a dodecagon's sides in the following way.

Draw the dodecagon on a piece of material and cut it out:
![[piece of cloth]](t3_01.jpg)
A lot of sewing:
![[production of a cloth torus]](t3_02.jpg)
![[production of a cloth torus]](t3_03.jpg)
![[production of a cloth torus]](t3_04.jpg)
![[production of a cloth torus]](t3_05.jpg)
![[production of a cloth torus]](t3_06.jpg)
![[production of a cloth torus]](t3_07.jpg)
![[production of a cloth torus]](t3_08.jpg)
Ready.
![[cloth torus]](t3_10.jpg) :-)
 :-)
[to the two-holed cloth torus] [to the three-holed cloth torus]