plastic laminate sheets with timber vaneered face.sticks on with evo stick and about >1mm thick or the rolls of paper thin self adhesive sticky back plastic . the first option will be a time consuming job to get looking right and the second option will just look shite, best painted and/or grained effect.
if the mdf has a stained timber vaneer face already its unlikely to strip the dark colour for a light colour without wearing through the thin vaneer.