From Excalibur #8! Meggan gets lost in New York and empathically shapeshifts into a variety of races. Poof TFs, but are oddly satisfying.
Also, The Coconuts. A South African sitcom about a white family who goes through a racial transformation after spending a night on a Zulu burial ground. Their black maid turns white. A scathing commentary of post-apartheid race relations (not really). Poofs.
Opening sequence:
Transformation: