No, you cannot make partyhats in RuneScape as there is no such method or hack.
they are the most expensive hats on runescape.
The colors for Party-Hats are:RedBluePurpleWhiteGreenYellow
Party hats are rares in runescape and are discarded items. The only way you can get them is by going to the Grand Exchange
you cant they were from a Christmas event a long time ago
Lol, no it isn't possible to make party hats on runescape, sadly. They are strictly a discontinued item that was made during the classic times of runescape. They were in "Christmas Crackers" that you popped, and it gave you a party hat.
The Grand Exchange in Varrok.
Party Hats (Blue)
Runescape Party hats are expensive and rare. "Real" party hats are easy to make yourself. Roll a sheet of paper into a cone-like shape, and tape the side. Trim the edge and you have a party hat that you can design and color!
There are exactly 7,239 santa hats, and the average amount of Party Hats is that there are 3121 P Hats out there, Not including Jack Bulb who has 413 Party Hats.