If you want to have the blueprint for a pteranodon saddle at lvl 30 something here's an idea

1.Use a settings that if you break a thing it gives all the resources that needs to craft it

2. Gather a LOT of stones and hides

3. Craft 15-25 mortar and pestle

4. Use 2x XP buff

5. Place all of them around you and then break them and then re-craft it over and over again until the XP buff run out