Because of the huge list and because it may be you dont know what the addons look like ive added a huge grid here for your help. Its numbered like the list and should be helpful. The list details not completely finished but most is added and will help you for the easier addons. If your wondering why its a grid its because i wont have enough space to add each image individually and add all the addons screenshots.

Addon list screenshot

Full items list to help locate things needed for addons and outfits

1 Ape fur- used for begger addon (gypsey and beard) and oriental addon (veil and turban) is found on apes such as kongra, merlkin and sibangs in Banuta (Tiquanda.)

2 Bat wing- used for Begger outfit quest and tiara addon non premy mage. is found in bats in various spawns such as Thais sewers, Tiquanda jungle, Meriana and Mount Sternum.

3 Bear paw- used for druid gloves addon and maybe other addons. Found in bears on rook, north of thais, south of thais, and various other places.

4/5 Behemoth claw/fang- The fangs for the knight helmet addon and the claw for another. Found in behemoths located in Edron mainly cycopolis.

6 Beholder eye- used for assassin outfit quest. Found in Beholders located north of thais, in the desert dungeon, in the beholder quest near thais and other places.

7 Blue piece of cloth- used for an addon. Found in blue djinn and marid. Aka north of ankrahmun in the djinn tower near the stone golems.

8 Brown piece of cloth- used for begger outfit quest. Found in ghouls, located in thais, on the way to mintwallin, edron and ghostlands im guessing and various tombs near ankrahmun.

9 Chicken feather- used for citizens hat addon. Found in chickens and located northport, greenshore and liberty bay.

10/ 11 Demon dust/horn- used for addons. Found in demons once a blessed stake has been used. The horn is lootable from Demons and are found only in Edron unless you count Orshabaal or Morgaroth or even the trapped demon in liberty bay (no access to it yet.)

12 Eye patch- used for sabre pirate addon. Located in Pirate marudas and cutthroats in Nargor.

13 Fish fin- used in assassin outfit quest and veil addon. Located in the Quarra race found underwater in Calassa.

14 Giant spider silk- used for tiara addon mage and probablly others. Located in Giant spiders which are found in Plains of havok, Ankrahmun tombs, and Darashia.