Yea, you can get dry pearls from House of Kolor. They come in many, many types from just straight pearls to Ice Pearls, Chameleon Pearls and various and other and sundry types. I use dry perals. They come in many, many colors and it sort of depends on the effect you're looking for one what you use in what and where.
For instances, I built a Cobra a couple of years ago and it was painted pearl white with red, blue and yellow trim. I put alabaster pearl in the white and then put the same pearls in the clear coat. it was an interesting effect. The thing turned silver in the sun at certain angles and worked out pretty well. I built a Novi that was painted with white, then green candy then clear with green pearls in it then shot with clear with alabaster pearls in it. that was a very cool effect. You have to experiment to get what you want.
Only thing you have to be careful about is some of the stuff that comes from House of Kolor comes as liquid additives. The carrier for these is often urethane so you can't add it to dope. I have used urethane color and such additives and it can be very cool. But just keep that in mind. That's mostly why I stick with dry pearls, metallics and similar.