Probably really generic answers but these are mine:

- Giant Hammer (not like a simple sledgehammer but a full on mallet like Harley Quinn has/had.)
- Caster Swords (I know, controversial, but a magic class with bladed weapons would be nice.)
- Maces/Cudgels (THM used to have them and so did BLM before SE made BLM staff/rod only.)
- Bagpipes