Guys, If you post a couple shots showing what you're issues are and explain how you're doing things (if you have a second camera, set everything up, then take a shot of the whole setup including the camera/lights/room, etc), I'd be happy to give you some pointers, I've got a bag of tricks ranging from big $$$ to using stuff from your neighbors trash can to get you better photos, but I could spend all day explaining things you either don't care about or can't do anything about.
Island, If you've got an SLR and depth of field is your issue:
What aperture are you usually using?
What's your lens's focal length? (mm)
How how far away are you usually from your subject?
What Shutter Speed? ISO? Using a Tripod? Flash?
Where are you focusing?
I haven't put a whole lot of time into taking my photos, as I'm just getting started making pens, and right now it's all about just documenting them before I give them away, but here's a couple of examples of what can be done in about 2 minutes with nothing more than a DSLR and 2 flashes (no tent, reflectors complicated setups, or anything:
Generally, for shiny subject it is a bit more critical. This photo is the same setup, and if you look at the reflections in the green pen, you see a square black shape in the highlight reflection near the fat part of the barrel, that is the camera, and it shows up because it is between light and the pen, so it breaks up the highlight. That would be where a tent or other diffusion, closer to the pen would work better than bouncing the flash off the white drop ceiling tiles.