The key is that it is executed with, and a part of, the original contract. Sometimes agents confuse addendum with an amendment, which is a modification later to the terms of an already-accepted contract. It has surprised me how often experienced agents use the wrong term for a document.
At this time, wax crayons were big, dull-colored, and clumsy and were used mainly in industry. But Binney & Smith used a combination of paraffin wax and industrial pigments to create crayons that were kid-friendly. In 1903, the first yellow and green box of eight Crayola crayons appeared. (The name Crayola means oily chalk).
I recycled one of those for the lipstick in the crayon picture, but I also used regular chapstick containers I had left over from making my chocolate chapstick, and tiny little plastic jars. It's a little harder to apply lipstick in a chapstick tube, but tins (or tiny jars) work really well if you have a brush.