Use some of those leathers and make gear out of it. Most (all?) of the Raptorskin stuff has a recipe level of over 50. Whichever synth is easiest/cheapest will depend on if you do any other crafts and/or the economy on your server.

Raptorskin Thighboots/Workboots both look easy to me. Plus, if you dye them (before patch 1.20 at least), you can get a second synth out of it.

It all depends on how much money/time you're willing to blow on it.