The only original item is the New Years Celebration Hat. Everything else has been in stores before. The Sun Necklace was in the carnival. Frankenstein Mask was in the Halloween party. Everything else was 'last day'ed (I don't know what else to call it) in Jam Mart Clothing...
Okay, sane thing with the den items. Drum kit was 'last day'ed, the upside down lamp thing was from the April Fools Party, Heart Flower things were from the Friendship Party, and the tombstone was from Halloween.
This is music from more parties. Usually It's just Jammer Anthem. Original? I'll leave that up to you.