That's what SWIM's looks like ^^ and all he does is repeatedly, scrape, stretch, spread, and fold it.  It'll stay stay sticky but will loose the gooey quality and will maintain it's form for the most part.  One could at least get to the point where when it's touched, it feels quite solid but sticks slightly though will not leave a resin.  SWIM keeps his in a little pipe tobacco tin where he can easily cut it and scrape it up for weighing and administration (SWIM has fantasies about filling the whole tin so that he can just cut pieces off every now and then).