At the moment there is no catagory for dies or embossing folders so could you add
Crafts, Handmade and Sewing > Scrapbooking & Papercrafts > Die Cutting and Embossing > Metal Dies
and
Crafts, Handmade and Sewing > Scrapbooking & Papercrafts > Die Cutting and Embossing > Embossing Folders