I don't know if you are aware but it is possible to have your very own alpaca postage stamps made. We use them on those special letters where we are trying to create a good impression and where we are fairly certain the recipient of the letter will open the envelope and see the stamp. So we do not use them when renewing our CostCo membership for example!
They cost more than a normal postage stamp but we do get an improved response when we use them. Plus they look really cute and are fun.
Click here to visit the photo stamp web site.
Adrian Stewart