Princess Luna is another one of my favorite characters, and I've been wanting to sculpt her for quite some time. Here she is, arm upraised, using her TRADITIONAL ROYAL CANTERLOT VOICE.
I had the idea of using translucent clay for the edges of her mane and tail, but I didn't realize the translucent becomes very nearly transparent when rolled out so thin! So the translucent bits were supposed to be tinted blue, but it's pretty much impossible to tell... Also, I wasn't sure how to go about making her 'shoes'. I ended up painting them on with pearly mica powder, but it's not really the right effect. I probably should have added them as another layer of clay - easier said than done, since dragons have little claws to worry about! I'll definitely have to try making another Luna sometime, because I am certain that I can do a better job the next time around. :]
You should be able to find it at any Michaels - they keep it in the glitter section (yes, they usually have a small area dedicated to glitter ). I bought mine with half off coupons. It's fun to work with, but requires a bit of experimentation to pair the right mica powders with the right clay colors. I ended up making myself a few color swatches so that I'd have a reference to go back to - I've found it very helpful!
I will have to look next time I'm there...of course I'm not going for awhile because I just went and stocked up on clay because it was $1 instead of $2.79, so I'm set for a good period of time(and when I go I tend to want to buy ALL THE THINGS!) I did just pick up some pearl ex pigments to try, I'll have to see how they look. I've heard they're awesome, but I've only ever used them on cardstock before.
Ah-ha!! Our Michael's doesn't carry them, which is such a bummer because I'd been on the lookout. I Finally found a nice selection at a local art store here and used some for the first time last night. I like the effect, but I see what you mean on making different little combinations so you can see the results of how they look