Add a "Collect as Items" option in the GE Interface - Imgur
RuneScape Will Add a New Party Hat for the First Time in 20 Years - Gamezo
people actively trying to buy up all rares still within GE limits :). santa hat from 850m to 4b+, easter eggs up to 1.7b, h'ween masks above max cash now, the list
How Runescape's party hat became so valuable | PCGamesN
Update:Presents from the Sledge - The RuneScape Wiki
How Runescape's party hat became so valuable | PCGamesN
Latest trades in SuityBot for Green Santa are being deleted to manipulate prices : r/runescape