I would strongly recommend using some sort of flash rather than continuous lighting.
Using a light tent is one of the easiest ways to control lighting. If you combine a light tent with a pair of small studio type strobes which incorporate modeling lights; you can control the amount of shadow and reflections in your image. Modeling lights provide WYSIWYG shooting. If you use hotshoe strobes, you will be shooting blind. It can be done. However, I can drive nails using a ball peen hammer but, a claw hamer is much more suited to the job.
As far as going through the trouble of fabricating a light tent from a cardboard box, I would not go that route. I do like DIY projects but, when you can get a commercial product which will do the job as well or better than the home-made setup; that is the way I will usually go if the price is right. I like this type of light tent because it works well, is relatively inexpensive (under $20 USD with shipping) and best of all IT FOLDS UP TO BE STORED. I don't know about you guys but, my wife doesn't appreciate a jury-rigged cardbard box sitting around the house...
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As far as studio flash is concerned; the quality of your setup depends on how much you expect to use it. I have a pair of cheap Chinese studio strobes which I use as background and hair lights in my White Lightning setup. They have been working for years and I paid less than $30 each for them. I would never consider them for 8 hours a day, 5 days a week use but, for occasional hobby work; they do just fine. The nice thing about studio strobes is that you can trigger one of them with a sync cord and the second will fire from its optical slave. You can of course, use them for other than small parts photography with the light tent.
However, if you are careful about the heat, a pair of home depot worklights can work great. Use either the hologen types which are quite hot or an incandescent clamp light using a photoflood bulb.