I also have a last-minute-friendly crochet idea for you. A flower and a sweet little doll in one, it makes a wonderfully personal gift. The little one is quick to crochet and perfect for using up some leftover yarn.
Clicking on the image takes you directly to the pattern:
What you should have at home:
Yarn in a skin tone of your choice (preferably cotton, about 20 g, with a yardage of around 100 m)
Yarn in green (about 5 g in the same weight as above)
Yarn in a hair color of your choice (about 10 g in the same weight)
Yarn in yellow (about 10 g in the same weight)
Yarn in a flower color of your choice (about 10 g in the same weight)
A very small bit of leftover yarn in red for the mouth
A slightly too-small crochet hook (2.5 mm with a yardage of around 100 m)
Stuffing
Safety eyes (of course, you can also embroider a face)
Embroidery or darning needle
Scissors
It is crocheted in single crochet stitches in continuous rounds; increase and decrease techniques should also be familiar. The pattern has lots of pictures, and there is a link to a video version on YouTube.