What you needQ / 16mm crochet hook
Odd balls of yarn of the same gauge - I used Aran weight/worsted.
Use yarn double throughout.
Chain the width you want.
1 double crochet (tr in UK or Australia) into each chain for two or three rows. Change colour in last stitch of 3rd row.
Continue in this way until it is as long as you want, finish off.
Edge with reverse single crochet.