There are some lovely FREE patterns in the 'Simply Crochet' Magazine ( I'm a subscriber) this is a fantastic NEW mag I just had to have. And these don't take long to make. You can use the yarn you have in. I used some 100% cotton for the greenish one & 100% acrylic for the pink with white fleck. Sadly all my mugs are a funny shape so they don't fit any of them lol but I decided not to let that stop me.
Hope you're having fun making something today Dxx