When U get enough Frumious Fang, U can make Snarbolax set.
When U get enough Bark Modules U can get... catalyzer and pulsar -_-
I think that twins should have some original weapons (for example connected to their fantastic laser), so here is my short idea:
Laser Spinner would cost 20 Bark Modules and have following stats: http://postimg.org/image/5ypdk5mkh/
After fusing bomb it starts rotating (1 turnover per 4 second) and shot laser from all cannons.
Dmg system is like in the boss fight - I mean that laser can't dmg instantly so it kills like in Roarmulus Twins fight
Here is a pic of bomb:
http://postimg.org/image/lac1n8q69/
I like the bomb, but...
1. How does it do piercing damage?
2. Why do we need another piercing damage bomb?
3. Why wouldn't it do elemental damage?
I know this is basically just one question, but I'm completely baffled by your choice.
original weapons
What's not original about the catalyzer and pulsar? What about the Static Capacitor?
There isn't any "Vanaduke-themed" equipment (well there is, but you don't get it for tokens)