There are a ton of items that you can use for Fairy kei.
I recommend going to the 'marketplace' tab and trying an item search. There you can search using color and item type (shirt, skirt, shoes, etc.)
Also, check out the shops and see if there's an item you want to base your outfit around. Part of the fun with things like vis-kei, fairy-kei and lolita is coming up with your own unique style.