Enchanted Broom and Scepter of Thorn.
They are both masterwork quality and are recognized as masterwork items when you forge masterwork armor/weapons. I don’t think there is anyone who wants to forge them for a random green weapon and I doubt they are part of any secret recipe we don’t know yet.
Bouquet of Roses and Fancy Winter Crystal Scepter are also masterwork and they don’t appear in mystic forge menu.
I really don’t want to accidentaly forge them.