Nu Way Color Changing Records by Ton Onosaka
Magician shows a stack of black records.
He places one in an empty case, so audience can see the black record through the clear slits. With a scarf, he wipes across the record.
The black record changes into the same color as the scarf.
This is repeated 2 more times with different colored scarves to magically change the color of records to match the scarves.