Lee Valley has an amazing supply of tools for woodwork and gardening. If you are into either you owe it to yourself to page through their catalogs. They seem to specialise in hand tools, but as they say on the comedy channel, paging through the catalog is "time well wasted". That's how I came across the finger wrench.
A trip to one of their stores is guartanteed to turn into an outing.
Interesting story- a local orthopaedic surgeon was interested in woodwork and started adapting Lee Valley tools for use in the surgery. He then approached them and now they make a range of surgical tools as well.
on the same page in the catalog I found this. I recently saw a movie about their original use called The Lunchhbox" based on how home made lunches are falwlessly distributed in Mumbai from home. The movie is reccomended. Here is a description of the distribution. Apprently the are called Tiffin boxes.