ERRATUM - Row 40 should be to last 14 stitches, not last 13.

This is much, much easier than it looks.

Only 1 row in 8 requires a tiny bit of concentration (and there are tips to help with that).

Use a nice soft yarn up around your neck and then for the colourwork use something fancy - you’ll only need about 120-150m (135-180yds) :

Kauni
Noro
any self-striping
handspun
mohair
maybe even variegated.

Many thanks to the testers for their feedback and beautiful knits:

mireille7
skyhooked
malin
tarynL
cdoertel
stricker
rebs16
bfcallsmemartha
marikorose
wireknitter
stellacometa
cellogirl2
onecheapsister
covelady
sniffit
heleenk