Add Rare Material To puzzle chests!
This is actually a good idea. A 100% chance to get a Rare material from a chest would be too high though. Maybe a 10 – 25% chance (depending on the “ease” of the JP) to get a Rare crafting material from a Jumping Puzzle chest? This would help increase the supply of Rare materials, but since chests can’t be opened more than once per day, they can’t really be farmed in the traditional sense.
It’d also give people a reason to do the puzzles after getting the achievement, aside from just havin fun:)