Hello everyone, crafting newbie here 
I really wanted a pair of cashmere socks/legwarmers but wasn't prepared to pay £50 + for them.
I do like my second hand cashmere and my sheepskin insoles, so decided to try cutting the sleeves off a too-small, shrunk in wash purple cashmere ribbed cardi from M&S and attaching them to a pair of sheepskin insoles with linen thread. The first sock was a bit messy, the second, I pre-pricked to make sewing easier.
Result - pair of cashmere and sheepskin slipper socks for under £10 (cardi was £4 in charity shop, insoles were £3 incl post)
I've also made DD a pair of mittens from old wooly socks, and an UKI doll which you can just about recognise 