A bit of explanation: @iamdanw came up with this idea about 24 hours ago, and it was constructed entirely over a 3G connection in that day. It's shown up a few interesting issues with Amazon Lockers - including that items which don't have a confirmed size in Amazon's systems show up as being "too big". That's taken out a lot of our 'trinket' buying options...
Got encouraged to submit it here as it sort-of qualifies as a hack on top of a service that wasn't really designed for this sort of thing...