Wiffle bats don't last long,
but they are cheap!
Sonny Umpad makes light rubber sticks for apartment practice (noise reduction) saying they won't last for sparring but we've used them for light sparring, hand targeting / sniping for ten years and they are still fine. No protection is needed.
We also use the padded sticks from Edgar Sulite, but they hit much harder and last longer.
I bet they can still be bought somewhere!