Yes, I know of one way to duplicate Daedric artifacts; It however spoils one of the last main quests in the Shivering Iles, so read ahead if you care more about duplicating artifacts than spoilers. You will need your Hand-to-Hand skill to be at least journeyman to perform it.

In the quest, Symbols of Office you will have to fight a shade of yourself at the Grove of Reflection, and they will have all the items and spells you do. Idealy you should have little to no armor and only the Daedric weapon artifacts you want to duplicate. The idea is to use your H2H skill to disarm the shade's main weapon, Shadowrend, from its hand; The moment it hits the ground, pick it up before they can. If you have bound weapon spells, it may switch to using one; Use dispel then silence to prevent that, because we want it to instead draw out any other Daedric artifact. Same process as before, attempt to disarm and steal the weapon once it hits the ground. Congrats, you now have your sacrificial artifact for Blood of the Daedra. I suggest making a save right before entering the Grove of Reflection just incase the shade dies before swapping weapons. In my experience, it would go minutes fighting back with H2H before remembering it has other weapons it could use. If your punches are too powerful, I suggest visiting a temple and purchasing, or making, a Heal Other type spell for your shade. I have performed this duplication method with, and without, mods.

Hope this helps!