I just found a great article at www.entrepreneur.com on how to set up your own mall kiosk. I was surprised that this form of vending is now a $10 billion a year business.
If you have an inventory of jewellry or craft items, you might want to look into this. For an initial investment of $2,000 to $10,000 you can set up at a local mall and enjoy the benefits of the high traffic they usually draw. (Here in Vancouver, one local mall was offering a kiosk for as little $1,000 a month - kiosk provided.) The only catch is that you can't compete with mall stores, but this can often be negotiated from my understanding.
This form of selling is also great for seasonal businesses - like those that sell Christmas or Valentine's Day merchandise - or if you have an item you want to test-market first.
For more information find yourself a copy of From Dogs... To Riches: A Step-by-Step Guide to Operate Your Own Mobile Cart Vending Business by Denise Clark.
Also, check out the article at www.entrepreneur.com/startingabusiness/startupbasics/location/article63012.html