Masks having a bad hair day? Two terracotta masks now in the Museum of Ancient Cultures, Macquarie University (figs 1-5), and the Classics Museum, Victoria University of Wellington (figs 9-12), seem to be in this embarrassing situation. Both of these tonsorially-challenged characters display highly unusual features (indeed the entire forehead of the male mask seems somewhat deformed) but a closer look suggests that in both cases their bad hair is the result of ‘tampering’ with classic mask representations or their moulds. That is to say, existing moulds have been modified and then brought back into use, or examples of each mask-type have been used as the basis for new moulds. Furthermore, the changes can be shown to have occurred at a much later date than that of the original masks or moulds. These changes confuse the identity of the mask, suggesting that those responsible for their later production did not fully understand the original iconography. They are thus of interest as evidence for the later reuse of artefacts relating to theatre, though we suggest in our conclusion that, in spite of their theatrical derivation, their purchaser was not primarily interested in them as souvenirs of Greek drama.