It is still possible to make relic fragment without destroying your precious artifacts. Remember you just need something that is not imbued that has an item weight of 450+. The problem is after Pub 63 they removed Mage Armor and Split Damages from the list of things that count for item weight. That is a blessing and a curse. A blessing because you can make nicer things, a curse because it is hard to obtain relic fragment. So how do we work within the rules and still make relic fragment? Well you get some bronze runic hammers, and brilliant amber. Then you start making True Radiant Scimitars. You will get between 20 and 30 relic fragment per hammer, so you can put away a few thousand in no time if you have a good supply of brilliant ambers and bronze runic hammers. Good luck fellow imbuers!