I really like the novelties as they are and should you still be having trouble I think full meme would be a step in the right direction. You can't be a LoZ fan without actively enjoying the memes within lol.
I hate anything GMK but I am still waiting for this set to drop and am willing to buy in.
I would like to see more weapon and tool colorways on the novelties though. Such as blue, silver, red from the shield or the purple/blue from the master sword. Bomb keys, iron boots, and maybe even race colorways with pictures of their "homes" like lakes, mountains, and deserts so that you don't actively tread on the copyrights.
That would probably add a steep increase on price due to all the colors but figured I throw some ideas out as well.