Three of the materials required to upgrade the Kaleidescope Parasol to its Level 50 form only came from wild BOSSes. No other upgrades had required such luxurious materials thus far.
This was because the upgrade process from Level 5 to 45 could be considered relatively easy to accomplish, but from Level 45 to 50, the capabilities of the Kaleidescope Parasol would be completely branch out. When the Kaleidescope Parasol had been designed, Level 50 had been its final form. Leaving the extremely precious materials until the final form was done in order to save materials needed for the previous upgrades. Most Silver equipment followed this train of thought. If materials could be saved from previous upgrades, then it was best to save them.
However, the current Silver equipment had their final upgrades from Level 65 to 70, while the Kaleidescope Parasol's final upgrade was still stuck at Level 45 to 50.