Im pretty sure theres a how to on this topic. I do mine by bringing the ends around the back and running them under about three threads. Then i cut and burn them using the base of the lighter to flatten them so its comfortable against the skin. A fid is very helpful for this. Hope this helps.
The ones i have seen arent very eye pleasing. I am fine with that for my bracelets, but the one i give away/sell i would like to be more aesthetically pleasing... i know, im being a proctodynia but any advice would be great
The best way is what rzeigler said. Use a fid or forceps to work the ends underneath a few strands and then cut, singe and flatten. This method if done correctly makes the ends dissappear between the knots on the underside of the bracelet.
I like to take my forceps and push the ends into the knot after I complete the steps above. This method works best with the Ladder rack and Fishtail weave.