This week I experimented with sugar. I added color in different ways. Most importantly, I learned why recipes say not to stir the sugar after it starts boiling. A few times I accidentally stirred the sugar either while it was boiling or after it had started cooling. Bubbles rose from the bottom of the saucepan and instead of being malleable, it would harden to an opaque solid, similar to toffee. I bought 6 pounds of sugar, so I had plenty just in case of mistakes.
I think total I probably used 3-4 pounds of sugar in experimenting and the final project.