This information's probably little more than a Factoid, but I thought "why not!"

In the scene where Godzilla is attacked by the Aggregate Destoroyahs in Godzilla vs. Destoroyah, the aggregates are actually toys made by Bandai, which were then released after the film was made! I own one of my own, along with the Burning Godzilla and the Godzilla Junior figures.