Sometimes, I just want to make something simple. This diagonal garter coaster and crochet can cozie is great for using leftover cotton. The coaster increases and decreases make a neat border, and it's a great way to teach somebody to do so.
Using DK cotton and size 6 needles, CO 2sts
Row 1: K-fb both sts
Row 2: K4
Row 3: K1, K-fb, K-fb, K1
Row 4: K6
Row 4: K1, K-fb, K to last 2 sts, K-fb, K1
Row 5: K-all
Rep rows 4 and 5 until 32 sts (or desired size)
Begin dec rows:
Row 1: K1, K2-tog, K to last 3 sts, SSK, K1
Row 2: K-all
When 4 sts left: K2-tog, SSK, turn, BO, weave ends.
Using a size G hook, the crochet can cozy is a simple circle bottom, until desired width, then SC around in a swirl until desired height.