two works for you.... Sheep Leather.
Even at your level, go to kons highlands and kill sheep to your own end of time. The sheep leather synth is lvl 2 leathercrafting, thus anyone yes anyone can do this. a stack of 12 has been sellin for 50-75k lately. all u need is dark crystals (6k max a stack) windurtian tea leaves (12-15 gil each from npc) and distilled water (11-12 gil each from npc). Easy money decent other drops(sheep teeth at 5-6k a stack) and keep an eye out for Stary Mary and her elusive horn.