After a stolen battery some months ago, I FINALLY secured my hood. I just installed a padlock, since I didn't find a better solution. I am okay with this solution, at least for now. No rattling or anything and not much noticeable, since I wrapped it with a good black tape.
Geez, between your battery being stolen and @Fishtaco having his house broken into and his e bike being stolen, I thought I had to keep an eye on my belongings considering I’m just a stones throw from Detroit

. Two places I have always wanted to visit, I always thought that crime in Perth Australia and Athens Greece was low. You might want to consider a move to Detroit