Here's a technique for making shim templates in a variety of sizes and shapes.
Download a free copy of Avery DesignPro software:
http://www.avery.com/us/Main?action=sof ... ecode=3200
you can skip the registration at this site by downloading from here:
http://www.download.com/DesignPro-Limit ... 22632.html
Install the program, then open a new blank project and select a label stock. I use the 5262 stock as it is about the right size for shims.
Insert this picture file into the label.
Now scale to your heart's content. Change the vertical and/or horizontal dimensions to make your shim tall and skinny or wide and short. Each time you make a change, print out the change to a different label on a sheet. You can use the printer option button to pick which label you print on, so with the 5262 stock you get 14 different templates from a single sheet of labels. Since the labels are adhesive you can either stick them directly on your stock, or do what I do and stick them on old plastic giftcards then cut them out to make permanent outline templates.
Once you've cut out the sheet metal, put gaffers tape (sometimes called duct tape) on the handles. If you want even stronger handles, cut the handle part double-high then fold the handle part half-way over on top of itself. Then tape to protect your fingers.
Shims are a throw away item. Make lots, use until bent or torn then dispose of the damaged shim and use a fresh one. I've gotten good results using .003 inch steel shim stock. Thin enough to fit on most locks, cutable with scissors, but strong enough to last through more than one use. The commercial ones I bought to check out were .005 which was too thick for the locks I tested on. While old drink cans offer a free source of shim stock, aluminum is usually too soft for good results. Steel works much better. I've found inexpensive rolls of steel shim stock on eBay. A five dollar roll is virtually a lifetime supply.
It's a good day when I learn something new.