Magic Slush Wand.
Slush Powder is great. This magic wand is perfectly and secretly loading Slush Powder into a glass or bowl that has been previously shown empty: Just load the Slush Powder into wand before your show (you can even carry the loaded wand in your prop case).
The Slush Powder Wand is made of high quality plastic and looks like a normal Magic Wand.
Magic Slush Wand