Is this unique to Australia? It's just a little bit of kitch to have in the kitchen draw ready for the summer crop of pineapples. The instructions were included, although it's a little difficult to actually use.
Here's a receipe which will inspire you to start looking for your very own pineapple peeler.
http://www.taste.com.au/recipes/17559/tropical+meringue+pie
I paid $2 in an OP shop.