I started by hemstitching with the weft yarn (Bluegrass Mills – Blue salvia) on 2 picks of plain weave (in this case, shafts 1,3,5,7 & 2,4,6,8).
As a single repeat measures ~17cm, I calculated that I would need about 10 pattern repeats plus 0.3 of a repeat (to pick 76; a full repeat = 262 picks) for symmetry to get a good length for a scarf.
I wove 10 repeats, each took about 45 minutes to weave and varied from 16cm to 18.5cm in length.
The piece was finished by hemstitching on a further 2 picks of plain weave.

Repeat number	Repeat length (cm)
1	18
2	18.5
3	18
4	16.5
5	18.5
6	16
7	16.5
8	17
9	17
10	18
0.3 of a repeat	5.5
TOTAL	179.5

I estimated that I had about 1.5m of warp left, so I decided to sample a few other colours of 60/2 silk as weft and choose one of these for the warp end piece. I played with the colours using WeaveIT and decided to try red (Bluegrass Mills – tulip), purple (Venne – 9-4024) and magenta (9-3020).
I hemstitched in red and wove ~2cm of each colour and finished by hemstitching in red.

I was so pleased with the iridescence in the red sections, that I hemstitched in red and wove as far as I could using the red yarn. The piece was finished with hemstitching. I was able to weave 6.66 repeats – at the end, I was having to hand manipulate the shafts to increase the shed so that I could throw the shuttle without catching unwanted warp threads.