I know I post too many suggestions, but here's another that I'm sure has been tried. Horse eggs are a pain to sell. I've had to explain how it's possible to dozens of players. It would be really cool to either fix it so "Horse Egg" works on a sign or to do [slot all]. I imagine the "[slot all]" to start with slot 1, 27, or 54 and work its way through the chest. That way no hoppers would be necessary to sell random items or horse eggs.
I like it. This would also help compact shops that sell promotional items or enchanted items, which need a hopper system due to the fact that they cannot stack.
I actually want to revise this now that I realized you can type words after "slot 1" on a sign. Instead of "[slot all]" just "[all]" would be preferable.
