1. I have to agree with Ed - it's the fun of HHs to leave them with trice as many platin coins in silver and gold each
2. Earth to dust would work fine for that, and I think it could be added to that spell if it's effect on fortifications should ever be revised.
3. Agreed - a vase-like container would be cool, which could take up to 3 flowers and display them... we need more displaying containers anyway, like armour racks and such...