Here's a couple of suggestions;
1 Black Ink + 1 Lens = Black Lens
1 Bottled Honey + 14 Sturdy Fossils = 1 Amber
Now, while the Amber recipe seems cheap compared to the value of one amber, take this into consideration:
1 Sturdy Fossil can be made into 25 Bone Throwing Knives (Which is the current most efficient way of selling Sturdy Fossils, as unless made into something, Sturdy Fossils have no value.)
25 Bone Throwing Knives = 2 Silver Coins, 5 Copper Coins, or 2.5 Silver Coins
Therefore, 14 Sturdy Fossils AT MOST is worth 35 Silver Coins, which, is 5 silver coins more than Amber.