formica
Cover with formica (1/8 inch thick) bought at home depot if the plywood is sound. I did and it looks great. You must remove the fiddle and the sink and faucet. Also should re-inforce fiddle(1X1 inch teak along backside of fiddle) when re-installing as only screwed into endgrain originally--weak. If plywood is bad, you could try saturating with thin epoxy to get some strength back.