I suppose it could be interesting, but based on your Website, most of those I don't need to see in 3D. Jewelry, for the most part I buy in person ... but if I were to buy a watch online, a straight on view of the face would be fine, maybe a separate view for the clasp.
Same with most of the gadgets you've listed. Maybe it's just me. It just seems a little unnecessary and kitschy than practical.
And to require users to load a plug in is generally a good way to make a lot of people not want to deal with your site.
At least that's my opinion.
I like to beat up pacifists, because they don't fight back ...
They're different tools used for very different purposes. This is an overly broad generalization, but the brush tool is more of a freehand sketching tool. The pen tool is for, well, most everything e...