After placing the staff into the bath of Magically Created water, Eiro looked at the other pieces of wood and then slightly sighed. These also had to be treated for a couple of days after being finished, so it might be a good idea to get them done first before making his way to Town to get the Forest-Spider Silk from Tom to use as bowstring for Sammy's bow.
In the end, since they were training weapons, it was mostly important to get the shape right, and that wasn't that big a deal, really. They wouldn't be sharp enough to actually hurt anyone either, so they didn't need a sharp edge, but should simply have the rough shape.
So, Eiro first got started with the Swords for Arc. First came the longer version that seemed to have to be held with two hands, and then the shorter, one-handed version. Both of them would only have the blades made out of Ovoya, while the handles would be more regular wood that was better for handles.