It just depends on the time and the market, my friend made a KILLING with the Candy Horns the moment you couldn't go anywhere on the net or in the world without seeing the word "Homestuck" (IMO it's a horrible comic, haven't read it, never will, not my art style forte) but somehow it became ragingly popular for a VERY BRIEF TIME and during that time EVERYONE wanted Candy Horns for homestuck cosplay avatars... so they were selling like mad. I'm surprised the homestuck creator never made a stink over the candy corn horns since they made a stink about the mood bubbles that had the symbols from shirts or whatever... but anyway... the only alchemy items you can sell well for a profit anyone wants are Minthamella, Glacemella, Backwings, HARMony, Erebus' Moon, maybe some of the Meow items, outside of that most items are gonna sell less than their crafting value... even ones with multiple poses like handheld items like the Mannfrey's RPM-7 Rocket Launcher dropped in price like crazy (though I see someone is trying to raise it up again but anyone who looks into the component cost would know a fair value to pay). I just hope they come out with some newer stuff soon like what the heck the Leathery Egg will be used for.