I think the second-hand skin economy in general is a bad idea and creates the wrong incentives for people purchasing these skins. They shouldn't be purchased as a form of investment, but as a cool looking skin.

I like TF2's implementation of the store, for example. If I see a new taunt released that I think is cool, I don't have to buy it immediately or else the price will go up by a gazillion due to artificial scarcity. I can purchase it when I feel like using it and feel good about my purchase since I didn't have to open a crate to try and get access to it, nor did I have to purchase it on the community market second-hand for a crazy expensive price.

I do understand that FOMO generates more profits though as more money comes in, but I think it's coming in for the wrong reasons and people are buying skins they don't want, they're buying skins as an investment or they're getting ripped off and buying a skin for way more than it was originally priced at. Contrast to crates, where people are buying for a gambling chance of making more money, which isn't great either but I think it's marginally better.

Roblox

Rust

CSGO

How long does it take to make a cosmetic ?

The expectation of what UGC should be job wise.

cost / time / quality /  idea

What system works best for the artist ?

Cosmetics in games ?

Some ideas for implementation

 lol imagine getting taxed 60% by garry and valve's lootcrate mafia before even actual taxes. wouldn't be me! 

Some ideas for implementation

 1 - Cosmetics are reviewed to make sure they are of high quality and meet the standards. 
2 - The creator decides how they want the item to be sold (a) or (b). 
  a - The item is sold for a limited short period of time; after that time, they get x% of the sales. After that time, they get x% of resale on the workshop. 
  b - The item is sold indefinitely or for a very long time, and the creator gets x% of sales and 0% of resale. 

It would be really neat for creators to let them release free cosmetics. More cool would be if you could as a player unlock those cosmetics via achievements. So you could get a crown cosmetic for reaching the top of the Jumper tower or get a pixel army cap for getting a big kill streak in Blocks & Bullets 

var stats = Sandbox.Services.Stats.GetPlayerStats( "facepunch.ss1", 76561197960279927 );

var zombies = stats.Get( "zombies_killed" );

private void Example(){
	var stats = Sandbox.Services.Stats;
	long garry = 76561197960279927;
	foreach(var game in games){
		if (!HasPlayedGame(stats, game.PackageIdent, garry)) continue;
		UnlockCosmetic(game);
	}
}

private void HasPlayedGame(Stats stats, string packageIdent, long userId){
	var stats = Sandbox.Services.Stats.GetPlayerStats( packageIdent, userId );
	var hasPlayedTheGame = stats.Get( "game_played" );
	return hasPlayedTheGame;
}

private void UnlockCosmetic(Game game){
   // write your own logic here lmao
}