I've seen a Rustoleum product specifically for tubs and tile. Check Amazon.

Any tile paint requires proper prep and you'll want to use trivets and protectors when completed. Years ago I tested paint on some tiles but never got around to the project. It seemed durable.

are you sure a laminate isnt in your price range? it would look sooo much better.

oh, for a year....

well, (normal caveats, i dont know what it looks like) i think i'd live with it as it is for another year, rather than having to worry about paint getting scratched off in frequently used areas. as a year stretches to two.