WE got a letter from Image Marketing about Green World Expo, Hong Kong's first big environmental show.
It came in a rather wasteful, much-bigger-than-A4 envelope from which dropped a pen looking like a wooden twig.
Aha, an enviro-pen, biodegradable, in fitting with the exhibition, we thought. But no. The pen was 100 per cent plastic, moulded to look natural.
Image Marketing's Fanny Lee told us the pen was meant to make us think about the environment, not to save its resources.
We hope that isn't the underlying theme of the exhibition itself - which runs from August 12 to 14 in the Convention Centre.
Meanwhile, we see the Tung Wah Group of Hospitals is more conservation-minded, and is using up its old envelopes with ''Merry Christmas'' on the cover. Or perhaps, being a charity, it's a clever ploy to remind recipients that the season of goodwill should last all year round.