But you can't crochet? No problem. Get your sister to teach you how to crochet on Friday night. Late. (After you should really be in bed) Practice a little on Saturday morning, just to perfect your skills. Saturday afternoon (at your new sister-in-law's kitchen tea) start your new pencil case. Continue crocheting until both halves are made. (Sometime on Sunday). Choose lining fabric and a zip to complete the pencil case. Sew it all together Sunday night. Monday morning take your new pencil case to school.
Well, that's what you would do if you were Miss 13.