The scrubby pattern is very simple, a great use of leftover yarn. I used about 1/4 ball of kitchen cotton and US H hook:
Simple Crochet Scrubby
Row1: 6sc into the 2nd ch, do not join.
Row2: Turn & 2sc into each of the 6 sts.
Row3: Turn & 2sc into each of the 12 sts.
Row4: Turn & repeat, till it's the size you want.
(6 rows made an approx 4" Scrubbie)
Weave in the loose ends & you're done!.