Make a thrifty pair of socks from just one 50g ball of self-striping sock yarn, and a small amount of plain 4ply yarn. The heel is added at the end, and can be replaced easily if it wears out.

Finished socks measure 24cm / 9.5 inches from toe to heel.
UK size 5-8 / USA Size 7-10 / EU Size 37-40