The custom pattern I made for my leather tophat.
2 x A (one mirrored)
2 x B (one mirrored)
1 x C
A connects to B.
B connects to C.
C connects to B´(mirrored B).
B´(mirrored B) connects to A´(mirrored A).
A´(mirrored B) connects to A (the first part)
Original picture-size should be 25cm x 18cm.
Please feel free to ask me if there are any questions left.