I can't guarantee what will be hot, but some fairly small things that you should be able to sell for double your cost are pillows with ruffles, you could do Christmas theme from purchased pillow sides, or small quilts; pot holders; christmas ornaments in felt or quilted; kitchen towels made from a quilted top with a button to go over the oven handle or refrigerator handle and the bottom being half a purchased terry towel or a folded over terry towel; quilted kleenex box covers - both large, square box, and purse size, maybe even car size soft pack. If you have an embroidery machine you could do linen or flour sack towels with an embroidered motif in the corner or in the center when folded.
Get the pillow forms at half price at JoAnns, Hancock, or online at least 16". You can get 20" pillow forms from IKEA for $4 (called cushion).