Party hat fragments are fragments with which players can assemble the 15th Anniversary party hat. 100 fragments are needed to create the party hat. Ten fragments can be obtained by opening Party Pete's 15th anniversary party box. You can obtain more by busting balloons which are dropped every half hour around all of the lodestones with the exception of Prifddinas.
- Party hat fragments look similar to spirit weed seeds.
- Until the update on 11 January 2016, the balloons containing the fragments were not dropped at the Eagles' Peak lodestone.