If you're referring to the Black Magic Powder and Blue Magic Powder items used with the Maker Skill, then as far as the forums go... Blue is dropped by - Drum Bunny, Dark Leatty, Cube Slime/Rumo(Unconfirmed), Retz, Zombie Lupin, Freezer, Paper Lantern Ghost, Iron Mutae, Lunar Pixie, Master Chronos, Jr. Yeti, Book Ghost, Hector/WhiteFang(Unconfirmed), Site, Captain, Master Soul Teddy, Ghost Pirate, Grim Phantom Watch, Spirit Viking, Skelosaurus(Unconfirmed), Skelegon
Black is dropped by - Ratz, Black Ratz, Chronos(Unconfirmed), Zombie Lupin, Mateon, Black Porky, Ultra Gray, Grupin, Book Ghost, Hector, White Fang(Unconfirmed), Mr. Alli, Homun, Lucida, Kentaurus(Unconfirmed), Bain, Risell Squid, Green Cornian, Skelegon, Chief Guardian of Oblivion
...Since they have roughly the same drop rate of ores, they shouldn't take a lot of work to obtain...
One of the monster that drop white powder are Copper Drakes, but I think there are other monsters as well too.
Bout 20k.
The woman that wears the white stuff, and the hat with a blue W on it.
The colors the flowers on Moshi Monsters can be are: Blue, Black, Pink, Purple, Red, Yellow
Black apple blue moon pink dragon
stumps
blue moon orchid blue moon orchid black snap apple
just plant a black a blue and a red love berry
you have to plant: Black magic, yellow magic, blue magic.
You get hansel by planting blue or purple dragon fruit , black magic beans and black moonorchid
The official colors of the Pittsburgh Pirates are black, gold and white.
starch
Either You Can Kill " Any " Monsters For The Potions If You Are Not Funded With Money, If You Have Money To Spend Go To The Bottom And Find The Merchant Next To The Armor Seller, Then Buy Them There.