Hey Simon,
Right in front of me, I have a bottle of "DecoArt Dazzling Mettalics Elegant Finish - white pearl". I also have it in sky blue. As long as you really give the bottle a good shake to stir up the meattalic flake, the pearl effect is actually pretty good. I got it from an online vendor, but I don't remember which one.
It's easy and inexpensive. Look'em up and giv'em a try.
-Fred
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