As it turns out, there is! The ghost bombs are a bit pricey once you’ve used you free ones, so buying them won’t be high on the ‘must buy’ list. Thanks to Heidi, I now know that there is and I want to share the information with you!
It turns out that you can get a ghost bomb by tapping ghosts! They drop it like they would with GOO, Gremlins or even doughnuts (very rarely)! So, you don’t need to waste your doughnuts on a community prize that’s basically pointless!
Thanks again, Heidi!