If I go the super glue route, does standard Bunnings super glue do the trick or do you buy something special ????
Do a local search for hobby stores in your area. Most of them stock the different viscosities.

The hardware store stuff Simon is talking about may be different than what we get in AUS, but IME the Selley's brand in the little tubes is thicker than the medium viscosity (ZAP brand) I get from Hobbyrama. However I agree that the thin viscosity is better suited to a grain filling application.