This site has been mentioned before, but it has gotten quite an upgrade. There are generators for many kinds of boxes, shadow box frames and more and a click of the more options button on any template will give you the chance to save your custom template as SVG. for example...
http://www.ideogram.nl/boxmaker/template.php?template=polygon
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Etsy | Mugs For U
Cutting with 18" Silver Bullet and a KNK Force (the rest are collecting dust!)
Sandy
Cutting with KNK Force, Maxx Air, Zing Orbit, Skycut C and D
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