I decided to make some funky new coasters out of some left over cotton yarn.  They look very cute and would make a creative hostess gift.  This pattern is very easy.  If you are new to crochet, it is easiest just to keep it a solid colour.  I have added the colour changes that I used but they could be changed in any rows you choose.
FUNKY CROCHET COASTERS
chain 3,   slip stich in first ch to form a ring.
Row 1:  8 single crochet (sc) in ring
Row 2:  2 sc in each sc (16 st)
Row 3:  *1 sc in next sc, 2sc in next sc* repeat 7 times (24 st)
Row 4:  *sc, sc, 2 sc* repeat 7 times (32 st).  Sl st in next stitch.  Ch 1 to hold stitch.  Cut leaving about an inch and a half length of yarn.
Row 5:  Join next colour  *sc, sc, sc, 2 sc* repeat 7 times (40 st)  Sl st in next stitch.  Ch 1 to hold stitch.  Cut leaving about an inch and a half length of yarn.
Row 6:  Join next colour  *sc, sc, sc, sc, 2 sc* repeat 7 times (48st)  Sl st in next stitch.  Ch 1 to hold stitch.  Cut leaving about an inch and a half length of yarn.  Turn coaster over and tie off loose strands.