I never made a cool snail design, but some of my favorite possessions every world have been stolen capes. IMO, they're one of the cooler parts of the game - the only way you can really distinguish yourself by your player model. It's a shame that the meta is double hussars over a cape, and I think it would be rly cool to be able to attach a cape to your hussars(that you get back when it breaks).
I think the argument for doing something similar to make backpacks meta again is fairly similar. The choice is convenience/fun or meta/power, and 95% of people will choose the power option. Even if it's a really minor example of it, the ability to choose power over fun is bad because > 95% of the userbase having less fun even if it's their own fault for choosing the path of least resistance is still > 95% of people having less fun.
Also, sketchbook sales