My favorite one was in 2005, getting a Supernova's legs and torso, but arm sprue for a Caesar instead of the expected Supernova arms. For those who own both miniatures, you're probably looking at the two, the difference in size in the arms, and laughing at what Ol' Stubby was going to look like if I'd just kitbashed it with the accidental arms. Hated to have to bug the Officewench about it, but the right arms were needed, alas. (As an apology she sent the 'missing' components to the Caesar as well, lest I have spare limbs laying around)