Base Item	Combined With	Resulting Item
LetheRX	Crystal*	LetheRX with one higher # than base
Phnx Feathr	Crystal	Fire Orb
Monol Frag	Crystal	Magic Orb
Golem Frag	Crystal	Earth Orb
Dino Tail	Crystal	Life Orb
Jill Beard	Crystal	Ice Orb
Ghost Stik	Crystal	Mind Orb
Zilla Beard	Crystal	Water Orb
Ava.Horn	Crystal	Binoculars
Jill Beard	Nuts Oil	Cold Paint
PhnxFeathr	Nuts Oil	Heat Paint
Zilla Beard	Nuts Oil	Water Paint
Bajarl Pot	Ghost Stik	Evil Knife
Bajarl Pot	Evil Knife	Ghost Stik
Bajarl Pot	Jill Beard	ZillaBeard
Bajarl Pot	ZillaBeard	Jill Beard
Bajarl Pot	Ribbon	Scarf
Bajarl Pot	Scarf	Ribbon
Bajarl Pot	PhnxFeather	MarkisWing
Bajarl Pot	Mango	Banana
Bajarl Pot	Disc Frag	Golem Frag
Bajarl Pot	Golem Frag	Monol Frag
Bajarl Pot	Monol Frag	Disc Frag
Mock Seed	Pollen	Kirianin S
Honey Candy	Mint Leaf	Mint Candy
Mint Candy	Mango	Lozenges
Sh Fruit	Mock Seed	Biasin Z
Gaboo Soul	BlackPearl	Larox A
Mirror	Black Pearl	Joker Mask
Mirror	Diamond	Gali Mask
Whip	Coral	Trokatin X
Nail File	Disc Frag	Logimole V
Toe Shoes	HungrFruit	Teromean S
BeaclnHorn	Jill Beard	Ava. Horn
Binoculars	Totles Wtr	Eye Drops
Megaphone	Worm Fang	Wind Flute
Megaphone	Scales	Wind Drum

In most cases, the base can be reversed with the combined item for the same result.

* Almost any item combined with LetheRX has this effect!

Thanks to: Trickster, tarob, GM