This demo is using papervision3d technology to generate 3D t-shirt from bitmap in real-time and could upload the photo from user as well http://www.fishballstudio.com/dev/3dpv/ 
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This is DIY T-Shirt Demom which use flash and could upload photo from user directly: http://www.fishballstudio.com/demo/tshirt/tshirt.swf 
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This is the demo for DIY mug application, which could upload the photo from user and edit the size, position, scale and angle http://www.fishballstudio.com/demo/mug/mug.swf 
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We have done a website that combine flash as frontend and Joomla CMS as backend to communicate with XML. So it could easy to change the content by Joomla and have dynamic looks from flash as well. 
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