yup, just regular acrylics... and i sealed the hair to make it appear shiny. i haven't seen a sunny daze one around at all (the store i found those at only had those 2 and sparkleworks), but amazon.com still has the complete 2nd set available for $18, if you're willing to buy the whole set to get fluttershy. i'd buy the set myself if i could think of customs to make out of the others... as it is i think i could only use serendipity (i could turn her into a rosey posey). are there any other rare ponies that match those body colors?
EDIT: actually, there are quite a few tiny tins on ebay for decent prices... there are several sunny dazes and several of the second set w/ fluttershy. i'm also watching an auction for pinkie pie and minty, because pinkie pie would be ideal for my rosey posey custom.