Well i deas wise, In my opinion no crafter room is complete without a work bench so maybe use the stone top counter tutorial for a bench along one wall or maybe create an island work bench in the middle of the room decorate the rest with looms and other crafter parafinalia.
You can also create benches using gozas and decorative boxes to display your crafed items on and some tongs and so forth to add the i use this area feeling. for dislay shelves - such as in the picture i used maple or cherry armoires then dyed them and lifted some gozas up (you gotta love them darn goza mats)
This is a pic of my crafter wing maybe it will give you some ideas : -
When i was decoing , and i know everyones different, i took a look at what i had and also what i wanted then scoured these boards for ideas and modified a few to fit needs then gained inspiration to make my own litle deco pieces to fil the gaps.
I wish you luck with decoing your rooms and your house and look fwd to seeing the results