Rowan yarns are offering a lovely crochet pattern for heart-shaped bunting as a free download, made using DK weight yarn. If only I could crochet! *sigh*
Here are a few more fun creative things to make for someone you love:
Cute Cupcake Toppers Tutorial on the Papernstitch blog
Behold: the Smitten!
These awesome, fun mittens are designed so that you can hold hands and still stay cosy. Genious work by Coco Knits :)
More DIY Valentine's ideas on the Fossil blog here (via Creature Comforts).
Or, if you'd rather simply buy some loveliness, why not these!