For "win" read "steal"
Well, not quite:

Many, many wavy lines ago, there was a craze for a diy keyring type thingy called Shrinkydinks. Being young and unsound of mind I blindly followed this craze as much as my friends did. In certain packs, if you were lucky, was a voucher to get another Shrinkydink for FREE (FREE I tells ya!) I was lucky enough to get a couple of these and pursue my hobby freely. (Ahaha)

I soon realised, that in the correct light and a careful approach, one could see the voucher without opening the pack. Thus facilitating both my sisters and my own trend.

A trawl of all the local shops who sold Shrinkydinks soon turned up a whole stack of freebies. We would stand in the shop, first purchasing one, then opening it in the shop (in full view of the shopkeeper) who appeared as astounded as we did as every single pack magically turned out to be one with a free voucher in it!

I think they never repeated that offer:-((
( Blind Meach Cautiously optimistic, Sat 30 Apr 2011, 13:04, Reply)