http://wiki.spiralknights.com/Knocker
http://wiki.spiralknights.com/Gate_construction
The default gremlin knocker is holding a blue and a red wand. This correlates to the combination of minerals that was needed to construct a gremlin gate.
The status variants of the knocker hold their respective minerals as well- shock = blue + purple, and so on.
The description on the wiki mentions this:
"A small Gremlin that combines two wands to create a harmful reaction. The reaction has a small chance to backfire, causing a huge explosion that stuns the Gremlin and knocks it far away."
With the word "harmful" replaced by a descriptor for the status. So what if you took away a gremlin lighter's red wand, and swapped it out for say.. one of the gremlin cooler's green wands?
Green + Yellow = Slime
Would it deal slime damage? Like piercing? Or would it perhaps leave a puddle that would summon slimes?
And that, kids, is where babies come from. Any questions?